Pathetic Service received from Supersonic

This has to be the worst service provider I have ever came across. Firstly they didn't debit my account for the month of April, now in May they double debited me yet I made a payment prior to this occurring. I tried calling them, No one seems to work there or picks up ever in the accounts department. I want my money to be returned into my account and then I am cancelling my service with you. Very disappointing