Error 30, not able to enter electricity...

I moved into Silverstream Estate on the 01.08.2020, i have an issue with puting in electricity, the metering box is showing error 30. Lerato and Patience told me to switch off everything on the DB Box, that did not work, they advised i shouldnt buy more than one voucher in a day, that is probably the reason i cannot enter the electricity, if i do it again i will be charged penalties. Now this is not the 1st time i am using prepaid electricity, and i find it ridiculous, that for over 9 years i have never called a call centre or technician to enter electricity. Protea Metering is not an efficient company, you need to install proper metering boxes, and stop wasting money on a call centre or technicians.