Penasonic - Ac Not Repair

I booked one of my services for urban company, he said that there is leakage ,after repaired my ac the repair kit was not cooling, then the PCB got damaged in the meantime. The PCB was also taken to Shahbaz and repaired, even then the cooling was not happening, after calling many times, he came after working only for * second, the cooling started. Boot started showing F** code in one after * days which is the issue of leakage or sensor issue. Shahbaz didn't come even after many calls he keeps postponing everyday I am troubled since * months, please solve my problem by sending someone senior Urban Company Agent and also he didn't give last service receipt Name of agent urban company Shahbaz Khan Contact Number-**********