WORST SERVICE EVER FROM VODACOM

Today 8 June is my 3rd attempt to try and upgrade my vodacom contract unsuccessfully with the worst service ever!! I have been a vodacom customer for more then 15 years and for the monthly fee I pay I expect service in return. On Wednesday 3 June I called Vodacom to upgrade my contract (because I couldn't do it online due to the website not working) , the agent who helped me said that I will receive a confirmation sms. Friday I called again due to not receiving any sms and I was told I will receive a call from the ***** department by Saturday to confirm my order, it didn't happen. Today I called the upgrade department twice and my call got dropped twice, I then proceeded by calling the department to cancel my contract. The agent at this department said she could help me resolve my upgrade problem so I agreed. My upgrade request was cancelled by the system apparently. Unfortunately the "deal" that I chose on Wednesday was no longer available and the agent said she will call me back today ,which never happened. I'm very disappointed in the service I received from Vodacom. My upgrade is still not processed, so much time wasted and no progress. Is this the service Vodacom offers? Repair your website so that we don't have to deal with *********** agents....