Given incorrect Contract

Am doing this because i have not other place to turn too. I was called by a third party company contracted to Mtn who offered me options on what to do with contract since it is expiring this month. I told the consultant that i don't want another phone but requested that i keep my topUp 200, that idiotic lady offered me Anytime 200 with is contract has no limit. Called the 808 call centre-after 45 minutes of holding they couldn't help me. Mtn shops are closed and the ones that are open cannot help. the third party company said they can only send an email to Mtn but because of there strike nobody can help. am refusing to pay this debit this month since not my problem this happened and that no one is around to assist. Please can someone help putting my number on correct contract? i tried applying to port my number to Vodacom but they say Mtn needs to accept this request-but they are not answering anything so i cannot do anything. As am typing this email i have been waiting for this contact centre to answer my call. its been its been 48:36 minutes so far. how disappointing