Mixed Service Results

I am hearing impaired so emailed *** on 4/02/2025, the address being in their brochures, because I had noticed the green light not flashing on the ****le and asked if everything was OK. I received no reply. On Wednesday 19/02/2025 I realised that I was getting no power from my solar installation, it was all coming from the Eskom grid, so I sent a WhatsApp to Alumo support as this was now urgent. After 2 hours Alumo established that the system was offline. I received instructions on fixing it, but I am not technically adequate, so they said they would book a tech. Eben arranged to see me early today and even arrived early. He was totally efficient and resolved the problem in five minutes. I have been notified that the problem was caused by the customer (justified because I needed router adjustments) and that I would be billed R750 for a callout up to 1 hour. I am upset because ignoring my email on 4/2/2025 means that the Eskom electricity I used will probably more than double the callout charge.