Cant cancel contract

Cell c is known for the (pleasant) fact that they always remind you that your contract is coming to an end or can be upgraded via a call or sms.My data contract came to an end I forgot that it has ended.I didn't even receive an sms to indicate the contract is ending.I just got a vey bad surprise when the debit order went off and was almost tripple of what it usually is.I contacted celc on the 26th & 28th of feb, I went in to a store on the 28th of feb, called again on the 1st, 2nd, 3rd and 4th of March. All just to cancel the contract and up to now I still dont know if it is cancelled. Everytime I call, after explaining the issue, I am told to hold on or I will be transferred. Then the line goes dead. when asked today to speak to a supervisor, I was told they are all in meetings but someone will call me back. I gave my cellphone number and up until now haven't received a call To confirm the cancellation.When I asked today if the contract can be cancelled with immediate effect I was told I need to give 30 days notice, but ive been trying since last week to cancel. it seems like cellc can easily sign up contracts, but doesnt want to cancell it.Is this in line with the Consumer Act?