Extremely bad service

My Grandmother has been without lights for the past 5 days, someone at Eskom decided to block her meter because they think she tampered with it. My grandmother Loaded a voucher for R1000 in June 2020 so they decided to block the meter because they suspect tampering. Why are they investigating. Why are they taking 7 days to have someone over an investigate. The One house that does not tamper with the meter is the one that gets punished.