Samsung s6 out of stock

I would like to complain about the service in the following Telkom shops: Both shops in Clear-water as well as the shop in Westgate. They have horrible service and never seem to be in stock, I waited almost a week for stock(in order to upgrade), but nothing. They never answer the calls and never tell you when they have stock even if they told you they would. Truly horrible service and it seems to be in every store I've visited. Disappointing