Failed LT Service and refuse to answer phone calls

On 4 Feb I spent an hour at Telkom in Cresta mall to get a 50 Gig LTE Month-To-Month package, and I bought a LTE router cash.<br> A day later and the SIM has not been activated. No one at the Telkom call centre can help and the Cresta telkom branch refuses to answer the phone. On top of this, they forced me to pay cash for the router and the person responsible for handling cash at the branch, Nomsa Tabane, sat for 15 minutes in the back room refusing to help me while the other employee had to beg her to come out. Now I am sitting with a product I can't use and no one at the branch is reachable via phone.. Having a full time job it is very difficult spending 2 hours a day trying to sort out Telkom's pathetic service.