MTN IS APPAULING

I urge everyone to not use Mtn, they do not respond to queries and they do not want to assist in store. My father has been struggling to do a Sim swap now since Monday at Mtn Jubilee mall and he has been driving there for the 4th time now to get it sorted but the customer service is poor and they just do not care. He has been without his number for almost a week now and even customer service won't help.