Something has already gone wrong. What now?
Short answer
Stop paying immediately, put your complaint in writing to the institution, and keep every document.
A written complaint on file is worth more than a dozen phone calls, and it is the record any later step depends on.
Collect receipts, messages, the advertisement you relied on, and any names you were given.
What to check
- Write to the institution first, and keep a copy of what you sent and when.
- Do not make further payments while a dispute is open.