Contacts
strAImer is built and run by one developer, not a support department. Everything below reaches the same person; the address only tells me what the letter is about.
straimer.com@gmail.com
Write here about anything: the application not working, a payment that did not go through, a refund, a question about your data, or a request to delete your account. Answers usually come within a couple of days. Attach the log file when something is broken — in the application it is Settings → Logs → Open folder; it saves days of guessing.
Telegram channel
Releases, what is being built right now and short notes on how things work are posted in the channel. Comments there are open, so a question asked in public usually gets answered for everyone at once.
Legal and billing
The terms you agree to when paying are on the Terms of Use page, and the refund rules are on the Refunds page. Payments are handled by a payment provider — card details never reach us. For an invoice, a receipt or anything a bank asks for in writing, use the email address above.
Anything else
Collaboration, a module you want built, a bug you found in someone else's stream setup — same address. There is no separate channel for it, and no letter is ignored because it went to the wrong place.