Late delivery and no WiFi connection

The worst service ever I bought a home router which was supposed to be delivered within 1-3 day but that didn't happen the home router was eventually delivered 5 days later but the SIM card was not Rica'd I called to get rica the SIM card I was told they couldn't process my request since it's a weekend my request will be processed latest by Monday.The agents Yamkela Mqulwana and Wandile Maphumolo whee so unprofessional they kept transferring me from one agent to the other when I requested to speak to a supervisor I was told MTN has only three supervisor what the hell