Miway's bad service

Miway is refusing to refund my money. I made changes to my business policy, Miway went and debited my account but promised to refund within 7 days. I sent my bank statements, followed up with e-mails and phone calls. I would phone, they put me on hold for a long time and the phone gets cut off. I am very disappointed seeing I have been with Miway for more than 3 years. We have 3 business cars with Miway. I am very disappointed and mostly very upset as I desperately need the money