Telkoms poor service regarding Upgrades

Ive been with telkom for more than two years,a consultant phoned me regarding my upgrade. Ive decided on a particular device. The consultant informed me that they are out of stock. He'll phone me back as soon as the get new stock. After that i've tried all the third parties telkom use to find out who's dealing with my upgrade. Finally got another consultant to phone me back after a week changed to another device that is in stock and still had to find out that , that device is also not in stock the third party is waiting for stock from telkom. Also Telkoms customer care consultants have no idea that telkom is using third parties for upgrading their contract, which most of the consultants keeps on transferring me to their sales department that also after 56 min never answered my call and i had to end the call numerous time. Still no answer regarding my upgrade. There's also no complaints department at telkom according to the consultants