Cannot get anything right which is requested

A telemarketer contacted me and sold me a data package which I requested be added to my existing number, but when I received the package, they loaded it to a new cellphone number.

I then contacted Vodacom to cancel this new number and load it to my existing number, as requested, before the new number is fully activated. A week later, the new number was activated, and still no call was received from Vodacom.

Lastly, and additional debit order went off from my account, out of the signed debit order date, after I was assured the new contract will only be debited from the end of the month with my normal debit order.

It is now three weeks since I first signed up this contract, and still they keep on messing up my account. Worst service I ever received, and no one is able to help you. They keep on telling you they will open a call. Could not even find a dedicated complaints department to log a complaint directly with them