Urban Company — Ac issue

I booked ac repair and service via urban company, in response on 21 march 22, Alok Yadav visited and confirmed that ac radiator has leak and need to be changed. For which i made an immediate payment of 7148 rs, part was changed and issue seems to be fixed, but but 4 April 22 ac stopped cooling and relaunched a complaint, as the repair was in warranty.
Alok Yadav visited again and found that he was not able find the fault at the first time and mentioned that ac coil is damaged. He carried away the coil for repair, but did not turnned up for 4 day, after many follow up he mentioned that he is outstation and someone esle will vist and fix the coil which is fixed.
When the person visited he was not able fit the coil, after hours of try he gave and took away the in house ac unit and next day came back some how fitting the coil in the unit. Ac was not cooling so he asked to keep it running for 2hrs and it will be ok. Slowly ac lost the cooling again.
I launches a complain stating the work is not done property on whic urban company scheduled a sme visit. Anil Kanaujiya visited and checked also on video call with urban company sme and concluded that the radiator replaced was not as per the ac configuration and hence it is not taking the load, and it has to be replaced with double coil instead of single coil replaced by Alok Yadav Urban company engineer.
But Anil kanaujya refuse to work as the part would be expensive and will cost more than 9000 rs and urban company may not pay this money to him, and suggested urban company to send someoneelse, i launch a complain again as refuse of work, customer care called me several times asking same question is the issue is resolved and committing that they will call back speaking to Anil Kanajuya, but no one called back.
I have been raising complains on the app with no response