Poor service

Been trying to perform a SIM swap several times after losing my phone with no luck, as the response I have received that I needed to visit MTN Shop assistance, went to Dobsonville mall for assistance and after waiting for more than 2 hours due to load shedding, I was told that the don't have network meaning another day will pass without getting assistance from this poor network service it's so annoying that my business has to suffer because of their poor service