Telkom Upgrade Failure and inability to solve their system problems

I've been a business client for just over two years. My contracts became due for upgrade recently. Went to Somerset Mall to upgrade. Went through the process of upgrading apparently a system error broke the system. At this stage I left the store without a phone and the upgrade in progress. After 3 days backwards and forward and still the system could not be fixed. Cancelled the upgrade at the store and now in the second month I'm still been billed for a upgrade and a phone and the system apparently still not able to correct its issue.

This is unexpectable, unprofessional and ******* business practice from Telkom side,

Billing me for something I did not received and processing a upgrade after its been cancelled due to their inability to rectify system issues.

And yes, management is involved during this whole process.