Jet Customer service

Dear Jet, can you please advise why do I need to struggle with payments every month. This is a ongoing thing and I have phoned so many times and gave you guys all the right information to take debit orders every month. But since you guys are not doing your job I had to go instore everymonth to pay. Last Month I was at festival mall branch and complained about this I then phoned from there phone and had a chat with a consultant and was promised everything is sorted and that debit orders will from now on be the method of payment without any problems. You guys are causing a bad credit on my name which is not fair at all because of your neglegins. Please advise me what are we going to do about this. And because I look like a bad payer I am no longer able to purchase on the account, because you guys don't know how to do your job!