Bad customer service

App**** for a contract through mondo with mtn, it got approved and everything was fine, I then wanted to enquire about insurance for the 2 devices but the customer service is soooo bad, you will be lucky if you get an agent to answer the phone, I even emailed them requesting a call back, I’m still waiting for a call back even now, I also wanted to find out if we can arrange for a more speedy delivery as I’m currently without a phone even if i have to pay extra, but I cant reach anyone there, its like when they make a sale they don’t care what happens after, I’m really disappointed in the service