mtn line and account problem

YET AGAIN NO FEEDBACK RECEIVED FROM MTN FOR MY ACCOUNT PROBLEM NOW I AM EVEN STRUGGLING WITH MY LINE JUST 2 NUMBERS CAN GET THROUGH TO MY NUMBER THE REST DOES NOT GO THROUGH I AM MISSING IMPORTANT CALLS ALSO SOME NUMBER I ALSO CANT PHONE OUT NO SMS RECEIVED BUT DO RECEIVE WHATS APP MESSAGES I REALLY NEED ASSISTANCE URGENTLY.