Billed but not covered

I changed from King Price to Miway because of service, but Miway can't even call to confirm details.<br> <br> I took my car for their inspection but the registration number is incorrect so I'm getting sms's saying I'm not covered but they've already taken my money!!!<br> <br> I've asked to be called back and tried to change my details online with no luck.<br> <br> This is extremely poor service