MTN Insurance Department is Unreachable at all

My phone has been damaged since the 13th August, I called the 808 numbers that i got on my insurance docs, the call centre people are not helping at all. The gave me the insurance department numbers which is ***. I did call those numbers but the call just hang up on its own. I called the MTN call centre again they gave the Email address which is [Email Removed] still i haven't got any feedback from them since Thursday. I called the MTN Call Centre almost the whole day on Friday and Saturday they told me that the insurance department is not working on weekends and their working hours is from 8am to 5pm. I called them 5 times already today and i am not getting any help from them, i am so furious. The 808 numbers call centre agents are not helping me at all. i spent the whole weekend with a damaged phone where as i am paying insurance towards it. This is unacceptable. Bad Service from MTN.