Account debited twice and money not teturned 11 days later, and call centre agent telling me to shove it

I am very unhappy at how multichoice has made an error, debited my account twice and told me to shove it on numerous attempts calling to say their inability to reverse my money has affected me negatively. I was told escalate the matter but there's nothing we can do. This is on a refund for a debit order that went off on the 28th june, today the 9th my money is not in, despite the many times i had called explaining my insurance debit order bounced because there was insufficient money in my accout, as a result of dstv. I was charged 150 for the returned debit order, i instructed the insurance to collect in 7 working days, the days passed and another unpaid debit order and 150 charge. So far i have lost R300 as a result of dstv, and the money 11 days later is still unpaid and i am not covered, all for a useless service and a company which has no consideration for its clients. As soon as fibre is installed, i am cancelling this nonsensical service with no consideration for people's finances which put me at risk should anyrhing happen to me as my insurance is unpaid. Thats the selfishness of this company.