Highly disappointing service and unfair business practice

Terrible experience with Telkom ever since I took out a contract with them . It is upsetting at how I can never get a hold of anyone when I call. I hold for an hour at times trying to get a consultant to answer as to why they are debiting more than they should from my account. I had issues with them firstly not disclosing why they double debited me . I spoke to someone at some point who informed me that they had to debit R300 to test whether my account is indeed active. This is not normal practice, I have never experienced this practice from the competitors when I took out contracts with them. This is something totally uncommon and was not informed that the money they would take from my account was for this reason. Now they said that they would refund me that money in Feb and I would like them to confirm all of this for me as it is a great inconvenience when your money is being handled carelessly and it being unwarranted. Secondly this month debit date they debited me 100 more than the contract I had agreed on. I need my 100 refunded and answers for all of this. What's worse is getting a hold of anyone who will be accountable for such practices is a real cumbersome exercises as one calls continuously without any assistance thereafter. It is disappointing and extremely upsetting to be treated this way, I do want my money refunded and I need answers.