The worst service Ive experienced in South Africa!

Im struggln since 1.12.15 2resolve my account.I was debited R610 which was R392 2much! I was told that the promo deal ended & billed R349 for 5G Data. I wasnt aware of it &requested it be reversed as Telkom didn't notify me.The agent said it will b reversed&charge me R99 that I was billed the previous month.I SPECIFICALLY asked it b reversed in2 my bank account.The agent said it will take 72hrs &that I should go instore to change to mnth 2 mnth contract.I went 2 your Adderley store where I migrated 2 mnth2mnth contract of R99+R138 for 2G.I was told I will b billed correctly.After a week of no contact I called back.I was told the case was close as they contacted the wrong number.How do u close a case if u never spoke 2me!I then get a new reference number,***7.The agent said it will b credited,I once again asked it be reversed in2 my bank accnt.After many calls with several *********** agents I escalated it to a TL,Elton Mfolo.The 30.12.15 I went 2Bayside store &found out that I will b billed R544! I sent Elton an email & to no surprise I got no reply! Is there 1 competent person that can fix this!All I want is my money.I feel like reversin the money at my bank &cancelling!!