***** and cancellation

Please assist with the matter that I lodged last year regarding the migration of my three numbers that I never authorized then they take me pillar to post to assist me in putting back my old package, and one of my numbers was ending in Jan I called to cancel the contract they told me to wait for them to put my old package and the will immediately cancel which I called and they told the agent that did cancelation only submitted by never cancel it so in short I've been in this issue since last year up until to date ...they've been promising that the manager will call that never happened..I am so frustrated and don't know what to do