Worst flight ever FlySafair

FlySafair international has the worst service ever..firstly they don't mention anything on the website or when you book about the fact that you have to check in 3 hrs in advance..just today flight FA750 left OR TAMBO at 7:14 going to Zimbabwe and came back to OR due to a technical issue 🤔 question is don't they service their planes???? Ontop of that they don't even communicate, when you call Noone answers... terrible experience they should just improve their service.