Appalling customer service

I lodged complain with smeg about my gas stove which was not catching heat, ***, technician by the name of Happy avail themselves and I pail call out fee of 650 and confirmed that the stove need to be replaced with thermocouple and quotation will be send, after three days without any communication from smeg, I wrote an e-mail requesting quotation but still no reply, I took an effort contacted smeg using my ref number and the lady confirmed receiving my e-mail and she will request Kyle to contact, still no contact from him until I whatsapp him and promised to send me quotation same day but only sent after two days, I paid 480 for the part on the 29/04/23 but still no acknowledgement of POP, I contacted Kyle after 4 days of being mute, the lady called Annie with bad customer service advised me that the technician will be at my house4/05/23, I took a leave but no one came through, no communication from them, till to date I'm still waiting to date.