Inexperienced technicians and terrible after sales service

The contract with Wetility includes maintenance of the solar panels for 5 years from installation which includes cleaning of the panels on an annual basis. After 12 months had passed, I noticed no one had contacted me to schedule a cleaning. I began emailing to check when this would be done to ensure my panels were generating at their optimum. After several emails and finally in month 18, someone was sent out. I left for holiday the day after and bought electricity just before which I knew would last a little over a month as usual. I got back from the holiday 6 days later and within 2 days all my electricity was gone. I was surprised but bought more again to keep things going. About 3 weeks later, my solar kept tripping one night...repeatedly. When I checked the app I saw my batteries were at 10% and it showed that nothing had been generated for a month! I called the emergency line and the next day I was asked to send photos of the system so they could what it could be. Eventually they realised that the breaker to switch the panels on was down.....it had been switched off the day of the cleaning and never turned back on.... I've been asking for a refund on the additional electricity I had to load since my panels were not switched on due to negligence and there's been no response for weeks. One of the technicians also informed me that "you kept asking for the panels to be cleaned so we just had to send someone. He's never even done it before, we just wanted to help you because you kept asking" !!! You're not helping....you are contractually obligated to do it! And that doesn't mean sending somebody inexperienced just so you tick a box! Just one of the many problems I've experienced with this company.