Vodacom signal Strand

My mother lives in Twin Palms Strand. She's been struggling with having no signal almost from beginning of 2021. Went to Vodacom few times, but nothing wrong with phone. She even bought a new phone cash, since didn't believe Vodacom. Learned from neighbours also experience same problems for months now. Apparently new tower/antenna erected in Strand area. Vodacom Sanctuary advised her to complain to Vodacom Customer care. The more complaints they receive, the quicker will the problem be attended to. This is unacceptable !! Why must Vodacom customers pay monthly for a non existing service ?