INEFFICIENCY , BAD CUSTOMER SERVICE

I took a cell phone contract in December with minutes and 1 GB data; plus another free 30 GB for 3 months. I got my January invoice and discovered that they charged me R500 for internet/data usage. I raised a query ********** 5 on 08.01.2018 and was told it will be resolved with 72 hours. They informed me that the data I was suppose to get was not allocated to my account and they will rectify that and reverse the R500. have been calling their call center since and each time I'm told that the query has been allocated to someone. REALLY.... how long does it take to resolve such an easy thing? This is poor servi In the mean time they are planning to debit my bank account with R905.90 tomorrow