Bad service and *********** staff

My contract was due for an upgrade in December but when I go to the store to upgrade they say that the contract is showing that it is 1 month old on the system and the system is not giving them an option to renew the contract. Query was logged and after a month of waiting for feedback they say it is a system error and the upgrade can be done now. When I go to the store they say that they can still not renew the contract because the error on the system was not resolved and when they email the person from back office who was dealing with the matter they don't respond and there is no other way of contacting back office. What kind of service is that. I am so fed up of their bad service because there is only one problem after another with telkom. Pathetic service from the call centre agents who are of no help. And I must pay extra in my bill because of there stupidity and system error.