vodacome refuse to cancel my contract instead i get billed massive amount

I want to bring it to attention that iam writing this concern for the 2nd time ..for my router contract number *** july i was told that i cannot cancel this number due to migration - UNATHI DUNYWA consultant was handling my case and she explain to me that i must call on the 31st of August for cancelation so that i dont get billed for September and i dont get data on the 1st of Sept...

today on the 31st August iam calling for cancelation JC Angelo told is telling me that i cannot cancel today due to migration for the 2nd time again!!!! on top of that when i check on my app i seen they just added data now and i have been charged massing amount that i have never charged before R1080 for what !!!! i was paying R266 for this contract ...he sent me and email that i have requested that this number be converted to prepaid ....why???

email continue saying that i will be billed next month for outstanding usage cost ...which usage cost is he talking about???my account is not on arrears .

Iam real disappointed buy Vodacom am a platinum customer but you still want rip us off ....how can i query the same number for 2 month ,1 is telling you do that and the other 1 is telling me something else ....such a good company ...i called finance to query the amount in question but still the lady who i spoke too kept me hanging on the line until the line drop off .last time it was the upgrade sales derpart ment and i dont know which department will be in blamed now

Can Vodacom Senior intervern here , ***-Nonie