MTN/Nashua Mobile

I had a Nashua Mobile account. When my 24 month term expired a tried to cancell the contract. There was no response. i read that MTN had taken over all contracts.( i am an existing MTN customer) I was never informed of this. I sent numerous emails to MTN with my Nashua Account number as reference to cancel this contract. The response was that they could not trace it. MTN then started deducting off my account. Again emails to rectify matter and cancell contract. I then had to put a stop payment on my account to prevent them from taking money.Still no reply. Later i find a statement from MTN with all my details coorectly displayed. I personally go to MTN to find this is possibly the Nashua account. Why had i never been contacted ? All my details are correct. Now they are taking legal action agaist me!!! This is just bad, bad bussiness - i am now forced to protect myself legally.