Bad service

Good day I have reported my sim card on the 1st of June that it doesn't have a network, was told I will receive a call within 24-48 hours excluding weekend until today the 14th of June m6 query hasn't been resolved I call the call center everyday with my airtime new reference daily of which I think its useless as they don't follow up not even inform me of the process of my query I am frustrated and angry now as I make sure payment is done monthly yet I receive this bad service. They never keep up to their word don't care about their customers as long as they receive their monthly payments