Highly disappointed

I am highly disappointed with my recent service received from Vodacom. I am due for an upgrade which is a routine client process. Vodacom have recently changed their system and after going in store and receiving rather poor service from a consultant on the floor I am told that they have not migrated my profile and details across to the new system so they have no records to assist me in my upgrade and I should try online. When trying online I receive a technical error. Calling the call centre I have my call closed saying I have never been registered online. and so it goes... How does one upgrade!? Migrate to MTN...I have never known a firm to handle a new system/project implementation so badly where there is no parallel testing to aid the customer.