"I experienced significant issues with my service cancellation, even though I provided two weeks' notice. I ended up being charged for an extra two months. After numerous phone calls and a lot of frustration, Duke finally acknowledged their error and confirmed the refund amount. However, three months later, I still haven't received the promised refund check, and customer service has no information on when I might get my money back. Interacting with them has been a nightmare that won't be resolved until I receive my refund. The majority of the representatives are unaware of how to help and will keep you on hold for a long time, while supervisors are unresponsive to customer concerns."