Cancelled my contract but still get billed

Good day,<br> <br> I am not pleased with the service that I'm getting from Vodacom. On the 06th of July 2015 I app**** for an online contract with was approved online. Courier services were arranged that the package must be delivered to my work place. RAM courier service delivered the package to my workplace on the 08th of July 2015 TWO days after the contract was approved. The following day which was the 09th of July 2015 I've cancelled the contract and on Friday the 10th the RAM courier services came to collect the package from my workplace with they game me a form to sign that they have collected the package with the reference number as well. Today (02 September 2015) Vodacom deducted an amount of R361 from my account, for the contract that was cancelled and the package that was collected. What the f**k am I paying for? I want my money to be credited back to my account. I do not owe Vodacom anything.