Synchrony Financial Credit Card Complaint

Synchrony Financial Credit card department,

Transaction issue Utah

Synchrony bank failed to credit my payment of $250.00 on -/-/2016. When I called them to discuss they were unwilling to accept my bank statement as proof that a payment had been sent to them electronically by my bank ( - ). They were completely unwilling to work with me on getting this resolved. Currently the minimum payment due that I owe is $110.00 yet I have now been charged 2 months of late fees and my credit score has completely tanked.