Internet & Phone Contract Rights in Thailand: NBTC Regulations

The NBTC and Telecom Regulation

The National Broadcasting and Telecommunications Commission (NBTC) — known in Thai as กสทช (Kor Sor Tor Chor) — is Thailand's telecommunications regulator. It sets rules for all telecom operators (AIS, True/DTAC, NT) regarding contracts, service quality, pricing, and consumer protection. NBTC regulations override individual contract terms that are less favorable to consumers.

Contract Cancellation Rights

Under NBTC Notification on Consumer Protection B.E. 2549 (2006) and subsequent amendments: (1) You can cancel any telecom contract with 30 days' written notice, (2) The operator must process your cancellation within 3 business days, (3) Post-paid services must cease billing within 3 days of cancellation, (4) Your deposit must be refunded within 30 days. These rights apply regardless of what your contract says about minimum terms.

Early Termination Fees

This is a common area of dispute. If you received a subsidized phone or device as part of a contract, the operator can charge an early termination fee — but it must be proportional to the remaining subsidy value, not a flat penalty. For example, if you received a phone worth THB 10,000 on a 24-month contract and cancel after 12 months, the maximum fee should be approximately THB 5,000. Any fee exceeding the proportional subsidy amount is challengeable with the NBTC.

Internet Speed Guarantees

Operators must deliver at least 80% of advertised download speed and 70% of advertised upload speed as measured over a reasonable period. If your 100 Mbps plan consistently delivers less than 80 Mbps, you have grounds for a complaint. Document speed tests using the NBTC's own speed test tool at speedtest.nbtc.go.th or international tools like Speedtest by Ookla — take multiple readings at different times.

Service Outages

If your internet or phone service is disrupted for more than 24 consecutive hours due to the operator's fault, you are entitled to a pro-rata credit on your bill. Extended outages (72+ hours) give you the right to terminate without penalty. Document the outage with screenshots and timestamps.

SIM Registration Requirements

Since 2015, all SIM cards in Thailand must be registered with a valid ID. Foreigners need a passport to register. Each person can register up to 5 SIM cards per operator. Pre-paid SIMs purchased without proper registration may be deactivated. If you lose your passport number associated with a SIM, contact the operator with your new passport to update records.

Filing a Complaint with NBTC

If direct communication with your telecom provider fails: (1) Call the NBTC hotline at 1200 (available in Thai, with some English support), (2) File online at www.nbtc.go.th complaint section, (3) Visit the NBTC office at 87 Phaholyothin Soi 8, Bangkok, (4) Send a written complaint by registered mail. The NBTC must acknowledge your complaint within 7 days and resolve it within 30 days. If the operator is found in violation, NBTC can order compensation, service credits, or fines against the operator.

Billing Disputes

If you believe you have been overcharged: (1) Request an itemized bill (operators must provide this free of charge), (2) Dispute specific charges in writing within 60 days of the bill date, (3) The operator must investigate and respond within 30 days, (4) During the dispute period, the operator cannot suspend your service for the disputed amount. If you are charged for services you did not subscribe to (common with premium SMS or value-added services), demand a refund and file a complaint with NBTC if refused.

Porting Your Number

Number portability is guaranteed by NBTC regulations. You can switch operators while keeping your number. The process takes 1-3 business days. Your current operator cannot refuse a port-out request or charge a porting fee. Outstanding bills must be settled, but they cannot block the port while billing disputes are pending.

Practical Tips

Always keep copies of your contract (take photos if signed in-store). Screenshot all promotional offers that influenced your purchase decision — operators are bound by advertised terms. Use the NBTC 1200 hotline as leverage when negotiating with operators — mentioning NBTC often accelerates resolution. For foreigners, note that some promotional packages are restricted to Thai ID holders — ask specifically before signing up.

Related Guides

• Consumer Protection Law
• Utility Disputes
• SIM Card Registration