Synchrony Financial Credit Card Complaint

Synchrony Financial Credit card department,

Payoff process Michigan

Synchrony Financial is taking extra payments that are being made and not applying them properly. They make it difficult to pay extra payments on promotional balances. They have also " made up charges '' that they have applied to my account that I continually have to call and get fixed. They can not tell me what these charges are. I have had to call weekly and argue with them on applying extra payments to my promotional balances and they continually do it wrong.