Telkom the worst service in the world

Good day I am utterly disgusted by the service I receive from telkom... I can't express how angry I am... I took out a wifi contract with Telkom and this month I got billed 3 times instead of getting billed twice ... I went in store and made a manual payment because I changed my banking details no payment was deducted out of my account I went in store to make a manual payment last month but I was I need to pay online ... then when I call customer service I am told that I need to go in-store .. I sent telkom my new banking details but the payment wasn't deducted out of my account ... I keep getting the run from this **** company ...going further I will never make any purchases from telkom I can't wait for my contract to be over and I will ensure people that I interact with doesn't use telkom...