Safricom bad service

Student is current not in Potchefstroom due to the Covid 19. So they switch off the main at the switchboard to save their elektricity. So ever 3weeks they go to Potch to see if every thing is still in order at the flat. And every time they have to lock a call because there is no connection to the wifi. I lock a call this morning at 11:16. It is know 15:20 and still no IT consultant phoned my son back. But still why must we book a call every 2-3 weeks.