RMCS
Not able to cancel contract

I was recruited by Jet Stores to join RMCS. I was told that I will be given airtime at a reduced amount. Later i discovered that it was a contract. For the past 3 years I am trying to cancel the contract. At present I can not even use my number for outgoing calls only for incoming calls. RMCS seems not to understand their system. I am not getting any assistance form both Jet Stores or RMCS.