Get in touch
Have a question, some feedback, or need a hand? Send us a message and we will reply soon.
What you can contact us about
- Account, subscription, or billing questions
- Product issues — e.g. a document won't generate or a PromptPay QR looks wrong
- PDPA data-subject requests (access, deletion, correction)
- Feature suggestions or bug reports
BillsOS does not provide individual tax or legal advice — for questions about your own tax numbers, please consult an accountant or the Revenue Department. PDPA requests have a dedicated form at /legal/pdpa, and our other policies are on the legal pages.
Send us a message
Fill in the form below and we will get back to you by email.
Talk to our team
Questions about invoicing, PromptPay, or Thai tax? We are happy to help.
Email
support@billsos.com
Response time
We usually reply within 1 business day (Mon–Fri), by email only.
BillsOS never charges fees on the PromptPay payments you receive — money goes straight to your bank.
General tax question that is not account-specific? Try our Thai tax answers hub first — you may get an answer faster.