Synchrony Bank Credit Card Complaint

Synchrony Bank Credit card department,

Late fee Puerto Rico

My credit card company charged me a late payment fee which I disputed and the company did waive the fee but now they have increased the minimum monthly payment because of the late payment fee, which they waived but somehow it is still affecting my minimum monthly payment and will be affecting it for the next 6 months. They refuse to make an adjustment to the minimum monthly payment and insist that the payments will remain as they are for the next 6 months.