Useless client service

You have useless staff, I received two decoders on price lock for R698,00, i have already paid R2548.00 I don't what is this for. I phoned last week spoke to Promise and Clementine and I was told the bill was for 4 decoder & Promise assured me that she has cancelled the other two old decoders bas the first lady whom the installer spoke to her to activate the new ones didn't do her job to cancel the old ones, I was supposed to be refunded instead multichoice has debited my account this morning, I was told to email proof of payment to ********** which I did, I regret having to apply for this price lock. I phoned everyday, yesterday I spoke to Donald who also assured me that my refund will show in two days in my account instead it is a debit order of R980, i am so upset using my time ans my money again for phone calls, really multichoice employ people who will go extra mile for customer service, I am paying their salary it doesn't matter how little I pay multichoice, my first time ever since 2001 to get this treatment from, please sort it out and refund my money