Poor Customer Service

This company is the worst! My brother paid wifi on the 29th till this day the wifi still isn't working. I have tried to contact them on their landline but the numbers aren't working then i sent an email earlier yesterday & they rep**** around 17:30 asking that i provide a clear proof of payment as my slip was a bit unclear so i went & requested for a reprint at Pick n Pay today, i then i sent another email today with a clear slip but they've been completely silent. Like they're not even bothered by the fact that i am a paying client. I mean what nonsense is this?