Shocking

Got my TV and Microwave 2 months ago. First month no issues, 2nd month I get a message saying "we have a problem with our prorata billing" fine I accept that mistakes happen. You then double debited me both for my monthly installment and my pro rata. Now come this month I get the exact same messaging saying you will take the pro rata end of the month as you had a problem last month. But you double debited me. To be quite honest the way you are operating is making me feel that you are less of a business and more of a ****. How is it possible you want to charge me pro rata again? You already charged me TWICE last month. I do not owe you pro rata. I have PAID it