Can't MAKE OUTGOING CALLS IN OVER 2 MONTHS

I haven't been able to make outgoing calls for over 2 months. I'm so tired of Mtns pathetic service. This is making my life a living hell, even when I have an emergency I can't use my phone. I receive airtime on my contract phone every month but cannot use it. I've called 808 for like a thousand times but the consultants are useless and don't know what they are doing clearly because my problem has gone for much too long and there's still no solution. Will someone assist me, im tired of calling mtn now because everyone I get ahold of there tells me the same things. They keep reseting I don't know what but still the problem doesn't go away. I cant make outgoing calls,when I dial it just says call ended. My number is *** please help. Desparate