Synchrony Financial Credit Card Complaint

Synchrony Financial Credit card department,

Payoff process California

I have a Synchrony Bank Care Credit card and my balance consists of different purchases at different rates. I made a payment to pay off a 6 month no interest purchase and called the bank to allocate the payment to that purchase and the bank refused to do it. They said the minimum payment on my other purchase had to be satisfied even though it was not even due yet.