Bad service and poor response time

I have 2 contracts with Cell C, initially I was advised that my subscription would be R653 in total but on 25/04/2018 I had a debit order of R1153 going of my account. I called in and complained about it. I was advised that the extra that went of from my account was for out of bundle, which I didn't know I had. I advised Ntokoza that I will be reversing the debit and pay my agreed subscription whilst they busy investigating the matter. Since 25/04/2018 I have received no response and had to call in twice to get info due to anintimidating Sms. Dakalo Netshifaula became very uprubbed whilst I raised my concern. I am truly dissatisfied with the service I received. It is really frustrating to get the level of service from such a respected service provider.