Slow response times

Reported a faulty wifi ****le to installer 23 Oct 24. They removed the ****le a week later to get checked. Finally got a new ****le December but also did not work. Inverter finally removed 22 January. It is a small wifi issue and now it is a month later. This should not be taking so long and as yet no indication has been given to my installer on when I can expect my inverter back. Sunsynk sells a good story but after sales service is severely lacking!