Synchrony Financial Credit Card Complaint

Synchrony Financial Credit card department,

APR or interest rate California

I received a Care Credit card to pay for my dental work, having not been told that a very high interest rate for the total amount would be added to my account after one year. The interest was $ -+!!!!! I called to file an extension and was given more time, since I had no idea that this was the case. Nine days after the extension date, I called to pay the amount in full of $1800.00, they said that I would have to pay the interest too. I worked massive overtime to come up with such a large chunk of money, only to discover they would not honor this. They were also incredibly rude. They said a supervisor would call me back within 48 hours, and of course, no one called me back ever. This company should be shut down for scamming people!