Cell C *****

After opening my cellphone account with cellc in November 2019 it was a continuous struggle to get them to debit my monthly installment, the 1st of March I decided to pay R2600 eft to cellc which was the amount outstanding that they haven't debited, this after numerous in store and customer care phone calls to get to the root of the problem, 2nd March they debit my account of another R2600! Now it's been 3 weeks of a struggle to get them to refund me, I was told it would be sorted out in 7 working days, after those 7 days I phoned and still nothing, they are still waiting on someone from they're accounting department to phone me and arrange a refund, as they after I stated that I want a refund, they credited my account, but also only with R1700, I am still waiting for a response via email and telephone and no one can tell me as to when I'll get my phone call or my refund. It is terrible service and I plan to cancel my account.