still on wrong contract after 2 months

I had a terrible experience with telkom. Took out a contract 12January 2016, received my phone by the 20th. After activation I requested my balance and realized it's on the wrong contract plan. Went back the next day and told consults at the telkom branch in waterfront BFN. They said it will be fixed by the end of January as it was telkoms mistake. 1st February I went to ask why it's not fixed, I was told the case (ref ***9) , has been escalated as the branch can't assist me further and Julian Higgs is handling the case. I have been back to the store at least 4 times a week (on my own cost)to follow up as I can't reach Julian myself, each time the manager will call Julian to follow up and I would be told it will be fixed tomorrow or by the end of the week(empty promises), I asked that Julian call me (like 15 times)to explain to me what's taking so long as he handles my case, he never called me once, I spoke to him once and only 'coz I demanded they give me the phone, he never picks up his landline when I try to call him. it's been almost 2months and I'm still on wrong price plan, I even paid for the wrong plan for Jan and Feb. 27Feb I got a sms saying case resolved, it's not!