HSBC Debt Collection Complaint

HSBC Debt collection department,

Credit card Cont'd attempts collect debt not owed Debt was paid California

I contacted the collection agency and we agreed to settle the account at $250.00. However, they tried to force me into giving them my banking information which I did not feel comfortable doing specially because they refused to send me a letter confirming the agreement of $250.00 before making the payment. I sent them a check and a note indication that the check of $250.00 was for full and final settlement of the account. I also put on the front and back of the check that this payment was for full and final payment of account ending in - which they cashed. I then called the collection agency to request a settled in full letter and they refused and was asked by the manager - - to pay an additional $200.00 to settle my account. I can provide proof that the check was cashed on -/-/15.