Terms

These terms apply to riangeng.com and to rian gèng. Using the site, joining the waitlist, buying a plan, or signing in accepts them.

Organisation

Pristine Mekong Pte. Ltd., UEN 202609906N, of 160 Robinson Road, #14-04, Singapore Business Federation Center, Singapore 068914.

The course

rian gèng is a Thai primer in two tracks. Voice is spoken Thai in romanization. Script is the letters, taught on words from Voice. The course does not award a qualification.

Account

An account requires an email and a password. The person who holds the account is responsible for the password and for use of the account. Progress stored in the browser is the working copy. The account stores a copy. Logging out leaves the cards in that browser. Erasing the device deletes the browser copy and leaves the account copy.

An account is for one person. Sharing a password breaks these terms. The company may refuse or close an account that breaks them.

Licence

The words, synthetic voice clips, drawings, and software belong to Pristine Mekong Pte. Ltd., except where a credit names someone else. The company grants a personal, non-transferable licence to use the course for private study. The licence does not include copying the course for others, reselling it, holding the materials out as one's own, or using software to download it in bulk.

Romanization

Romanization follows the Paiboon system, from the Thai textbooks of Benjawan Poomsan Becker (Paiboon Publishing). The company does not own that system. These terms grant no right in it.

Waitlist

The company may send a message to a waitlist address when the course is ready. Joining does not reserve a date, a price, or a place.

Plans and prices

rian gèng has two plans. The yearly plan costs $20 a year and renews each year until it is cancelled. The Forever plan costs $40, once. Both open every level of Voice and Script.

The early-bird prices are half of those for the first charge, $10 for the first year and $20 once, and the company ends them when it chooses. The price at checkout is the price of that first charge. A yearly plan renews at $20 a year.

A buyer whose yearly plan is paid up may switch to Forever. The price is the Forever price less the yearly price, both at the prices of that day: $10 while the early-bird prices last, and $20 after. Only one year is taken off, however many years the plan has run. It is one payment.

The yearly plan stops renewing, and the time left on the year becomes part of Forever. The payment for the year is part of the price of Forever and is not refunded on its own.

If the renewal of a yearly plan has failed, the plan is not paid up. Forever then costs its price of that day, and the yearly plan ends. Forever does not change back to a yearly plan.

The company may raise these prices for new buyers. The price of a plan already running changes only as the Changes section below says. Prices are in USD and include any sales tax, VAT, or GST. A card issuer may add its own currency or foreign card fees.

Forever

Forever means for as long as the company offers rian gèng. It does not mean the life of the buyer or of the company. If the course closes, the section If the course closes applies.

Payment

Pristine Mekong Pte. Ltd. sells the plans and provides the course. Sold through Link, LLC, a Stripe company, takes each payment for the company as merchant of record. It charges the buyer, collects sales tax, VAT or GST where Stripe's Managed Payments covers it, and sends the receipt in its own name. Link's Sold Through Link Terms also apply to the purchase.

Renewal and cancellation

The yearly plan renews on the same date each year at $20, until the account holder cancels it. About 30 days before each renewal, an email states the date, the amount, and how to cancel.

Cancelling takes one step: Manage billing, on the Account page, or the link in the reminder email. A cancelled plan stays open to the end of the paid year and does not renew. A new price applies only from a renewal after an email has announced it, with time to cancel first.

Refunds

Any payment is refunded in full when the account holder asks within 30 days of it. No reason is needed. Write to sawatdii@riangeng.com from the email of the account. A refund closes the plan it pays back. After 30 days, the company does not refund a payment, except where the law requires it. Link may also refund a payment under its own refund policy, and a full refund by Link closes the plan as well.

A refund of the payment for a switch to Forever closes Forever and leaves the yearly plan open for the time left on it, without a renewal.

Withdrawal

A consumer in the European Union or the United Kingdom may withdraw from a purchase within 14 days, without giving a reason. The 30-day refund covers that right in full.

To withdraw, open Withdraw from contract, linked at the foot of every page, and press Confirm withdrawal. The page is open to anyone, at any time, with or without an account. Any other clear statement that the buyer withdraws also counts, from any email address, for example an email to sawatdii@riangeng.com. Link, LLC also takes a cooling-off request through its support, and the company honours a withdrawal that reaches it that way.

The company confirms the withdrawal by email, with the date and time it was received, and refunds the price paid in full within 14 days of receiving it. The refund goes back to the card used for the purchase.

The model withdrawal form, from Annex I(B) of Directive 2011/83/EU, may be used but does not have to be:

Who may buy

A buyer must be 18 or older, or have a parent's or guardian's permission. When a parent writes that a child bought a plan without permission, the company refunds it. The company may refuse an order that a law, a sanction, or the payment provider does not allow.

If the course closes

The company may close rian gèng. It emails every paying account at least 90 days before the last day. A yearly plan gets back 1/12 of the price paid for each unused whole month.

A Forever plan counts as two years of the yearly plan. When the last day falls less than 24 months after a Forever purchase, the buyer gets back 1/24 of the price paid for each whole month short of 24. From 24 months on, a Forever plan has no refund at closing. A Forever plan bought by switching from a yearly plan counts from the day of the switch, and the price paid is the price of the year it replaced plus the price of the switch.

Service

The company may change the course, or take it offline for maintenance or for reasons outside its control. Closing the course follows the section If the course closes. A session runs in the browser. A voice clip is fetched over the network the first time it plays.

Liability

The course is provided as it stands, without a warranty of accuracy, availability, or fitness for a particular purpose, to the extent Singapore law allows that exclusion.

To the extent Singapore law allows, the company is not liable for loss or damage arising from use of the course, including an incorrect answer, a missing clip, or lost progress. The company's total liability to a person for all claims is limited to what that person paid the company in the 12 months before the first claim. Nothing in these terms excludes liability that Singapore law does not allow to be excluded, including liability for death or personal injury caused by negligence, or for fraud.

Law

Singapore law governs these terms. The courts of Singapore have exclusive jurisdiction. This does not take away a right that a mandatory consumer law gives and does not allow to be waived. A person who is not a party to these terms has no right under the Contracts (Rights of Third Parties) Act 2001 to enforce any of them.

Contact

Questions, refunds, and complaints go to sawatdii@riangeng.com.

Changes

The company may update these terms. The date below marks the current version. A change that makes a running paid plan worse for the buyer takes effect only with the buyer's written agreement. Any other change takes effect on that date.

26 October 2026. Privacy.