Samsung — Samsung fridge - compressor heating, fuse changed recently but still giving problems. Invoice not received from technician despite

Hi,
I lodged a complaint to samsung customer care and a technician came and told to replace a fuse and charged me ₹6000/- including service charges and tax and orally gave warranty for two years, despite me insisting for invoice he told will get it tomorrow but until date i have not received and he is not attending my calls. He told to pay by cash or gpay. Now the same problem exists on compressor not working. What kind of technicians do you provide. Samsung technicians are big frauds i feel. If i dont get proper feedback i will lodge complaint to consumer court with all payment details