ripping me off/// ****************

I had two contracts with Nashua mobile last year so nashua closed. All accounts at Nashua were handed back to the network providers. In accordance,I was illegible for an upgrade last year Dec 2014. I never got my upgrade. Mtn undertook the contracts and has been taking monthly subscriptions off every month? My services were put off so I could not benefit from this phones. I have my phones now two years and and its starting to give problems.<br> I have called the free mtn number'808' from my phone and spoke to a operator. She was unhelpful and very co-responsive. I've tried to explain to her what my problem was but she ended up dropping the call in my ear? I don't deserve this kind of treatment especially when when the network company is ripping me off every month! My question is,whats happening to the monthly deductions that went off every month since last year Dec 2014? I want that money refunded and I want my number to be changed to prepaid!