Bad after sales.

Everything is fine till you have issues with your system. All below are different events. 1. Comms cable missing from installation. Took weeks to get. 2.System starting giving issues- Their installer comes out, "Oh Sir, the inverter wiring was installed incorrectly" That with a CoC issued from the installer. Wiring fixed. 3. Mains started burning and melting. New DB's installed and rewired - No CoC 4. New DB starting to melt - 440v on wire that should not have current 5. Sparks out of DB board +Burned wires.Fixed but melted wire casing not fixed.. Next day more sparks. GoSolr unwilling to send someone as they say the guy that "fixed" everything the night before said there was a know issue. I ask for evidence. They send me video and photo's but its not even my installation. After confirming and providing photos they were still unwilling to send someone out. I even reminded them I know that if it not their installation I am more than willing to pay, they still refused to send someone. 6. Inverter faulty - Almost 2 weeks to replace 7. New wiring of DB needed with new Inverter. DB wiring changed to design 3. Still no Coc since July 2025. 8. Jason from the call center was informed that I need a letter stating that GoSolr accepts my houses risk as I dont have a valid CoC which they should have provided. He agreed and said it would take about 24 hours. Its 72 hours now. 9. Jason phones me on thursday morning to tell me the installers will come out today, not Gosolr nor the installers contacted me to schedule the time and date. I advised that they should come on friday(today). Was told it will be arranged and feedback will be given. Still no call or any feedback. 9. Gave consultant at 14h40 to 15h40 to get me feedback and a letter. Still no feedback.