MTN insurance bad service

I have had very bad experiences when it comes to device repair claims, i have claimed twice for device repairs. On my first device repair claim, i was so disappointed on the service i received from the call center consultants, they respond so disrespectfully and they always change on their words, giving you different responses consultant by consultant, i was told that the maximum waiting period is 7-14 for my device to be brought back to me once its repaired, but they have this tendency of saying they have ordered replacement parts and their supplier is being delayed, they always don't know when their supplier is going to deliver their oders and they dont care even when you explain to then that you need the phone back as soon as possible because its the only phone you have. I am currently in the process of another claim for repair and i am seeing that we are on the same route of bad service, the consultants i called today where ***** and they tried by all means to get rid of me when i asked them about the latest status of my device, specifically their expected delivery day for the repair parts, thet dont even want to contact their repair department to find out, they laugh with each other on the background because i was calling them for a several times trying to get assistance but some of they will take your call back to the machine while you are on the phone with them, and they talked with each other possibly that there is this customer who is calling and he wants answers, it was just so bad i mean i can't believe it. They are not serious about giving good customer service at all