Deye Invertor fault not fixed

If I could give a lower score I would. My 8Kwh invertor was installed and within 2 month it gave a F20 error (hardware issue to do with the transformer). It was taken to Deye for repairs (took 2 weeks) only to come back without anything being fixed. Multiple people have the same issue and it was indicted to me that this is now a know issue with these invertors. It is costing me way more to have solar than just being on Eskom currently thanks to Deye.