Second time ***** which caused me loose a lot of money on my accounts

My vodacom number has been ported to mtn without my knowledge, not even an SMS or call to notify me of the changes as to be alert,this has resulted in loosing lot of money on my Capitec bank account. I'M OPENING A ********** CASE ON YOU GUYS,THIS IS *********** AS I HAVE NOT LOST MY ID AND ITS NOT THE FIRST TIME YOU LET PEOPLE DO ***** AT MTN WITH MY DETAILS