Do not charge me for a service I don't want

This is with regards to the One2One service that I have been getting data from until I sent an email in January for this to be cancelled. Fair enough, I did this knowing it takes a month for everything to be sorted. Im February I received data. I called. Sent emails. And one of the one2one call centre agent called me. Admitted its a mistake on their side and I won't have to pay. I paid my account still as she said this will be reversed. The whole of February I was fighting like a maniac for my number to be reistated back to MTN prepaid services. I had to travel to Botswana and I needed my sim card so that I can roam without any restrictions. Stood on the phone for over 2 hours at Protea Glen Foschini (where the lady that was working at the till was very helpful). There was a stock take on that day. And I was told that my number has been removed from the network, but how? And why? ? I did not get any answers. Instead I was told to get a new sim card and I refused to buy a new sim card simply because someone decided to wipe out my number from the network. That lady made means. Rica my sim. I went to MTN store and they told me I have to go back to Foschini, which was not helpful. I had to go to another mall (time and money wasted on this day). I went to a bigger MTN store and I was registered back into the network and advised to switch off my phone after about 14hrs. This was stressing as I was travelling the next day. All these were done on the 1st of March. Mid month I received an sms telling me I owe Foschini R108.99. And no other monies have been credited back into my account.

Now I get another message warning me that I owe R109.00 and is in arreas. I sent emails to One2One and The FoshiniGroup and I am getting no joy from these service providers.

You call, their phones are forever busy. And i am unemployed with no income to be sitting on my cellphone making long call centre calls.

Is this how old customers are treated when they no longer want your services?