Bad customer communication

One thing they bad at its customer service. Each n every month it's either they debit twice or 3times. Each and every month I have to call and complain about them having to do refund. This month again, I paid and sent POP, but they still debited even after they confirmed that My payment it's reflecting. Am very ****ed Each and every month I had to budget extra because I know they will debit extra money. I just need My refund please.