Telkom Mobile cannot upgrade package for two month

I have a Telkom Mobile 10gb month on month business contract. I want to upgrade this to 30gb and to purchase an additional line with 50gb. Telkom says this is a 72 hour process but it has been 2 months and all i get is case numbers which are closed without resolution. I started the application at Nicolway, then midrand now Sandton and no response...Noone ever calls back, noone bothers to resolve. The process of upgrading is so difficult with a business i cant wait 2 months to upgrade a package and i will switch service providers if i cannot get resolution. Can someone at Telkom please be serious with their jobs and execute this very simple task that should never have taken 2 months. I am very frustrated.