Vodacom

If I receive one more Dear Valued Customer call I think I am going to explode. Vodacom says I owe them R74.20. I have a contract that gives me airtime and once a month I transfer of this airtime into data. I have uncapped wifi at home, I am retired so i only need data for when I go shopping or am out of the house. Why would I spend money on data or extra airtime if I dont need it. This is my second complaint this year. I battled for months to cancel an expired contract and I was being debited via debit order every month. Eventually after complaining on this site I received a call from Vodacom - we went through everything and a credit was issued. But at the same time a debit came through that wiped out all the credit and I had to pay in. When I queried this I was told that the matter was sorted and no further correspondence will entertained in this matter. Now this....