Vodacom - bad service to the elderly

Vodacom has no structure in place for the elderly other than to phone the call centre and no answer. Cannot be helped at branches. My mother 83 want to cancel contranct. 3 x email provided to us does not go through. Fed up with these companies that think they can get away with bad service. Even at Checkers they have a pensioners line. Sies Vodacom. I am ashamed to think I was a cutomer of a company that is so "untouchable"...... or so they think