MTN Suspends my line even though I a not in arrears and then does not reconnect me

Today is the 1st of September 2020....my line has been suspended since Friday last week.i have calling 135 and getting a " service champion " to assist and still to date my line is still suspended ...Ok now let tell you my account is not in arrears at all whatsoever but still I her been suspended and I have not received any reason why I have been suspended ....what a very very disappointing service provider to deal with .....