poor customer service

I've been calling multichoice form the 16th of August 2017 with the same problem every month. I've bought the explora on their price lock option and was requested to put it on debit order. I've send them my banking details my bank account is being debited by R2100.00. but my DSTV remains in arrears. when I call the agents cannot track the debit order and gives me numbers that doesn't exist for their billing department. their seniors refuse to assist when I request to speak to them.