Vodacom's service sucks

I requested an upgrade online last week, after receiving an SMS from Vodacom reminding me that one of my MSISDNs is due for an upgrade. A SIM card was deliver yesterday but to my shock a new line was activated and added to my account. Since yesterday I have been trying to get this reversed or cancelled but not getting help from Customer Care. I tried again this morning and was told I need to send an email to vadmin and explain what happened and request them to reverse the new contract, I am still waiting for an SMS with the email address and in the mean time I am stuck with a new contract I dont even need.