Urban Company — Damaged my ac unit while installing

Website:

urbancompany.com

I have took urban company ac insatallation service on 13th sept 2020 while doing so it is also recommended by their technician that installation work also requires 1metre copper wire too .So i agree for that on total i pay approx 2400 rs in total.
After affixing copper wire and installing ac and checking all parametres including ac gas which is more than half filled as ac is only 1 yr old technician left giving me assurance.

After few days i felt ac is not working properly their is some leakge of gas that occur due to poor installation of that extra 1meter wire by urban company technician.
Also as i have opt for warranty facility while booking urban company thier is clause of 90 days warranty too that they will cover any damage cause by service.
Their technician again visited me today on oct 11, 2020 and found that their is no gas now whole gas got leaked out and ask me to pay again 2500 rs for refilling my gas that i already had.

What kind of justice is that? urban comapny is making joke out of me by harassing me in best possible way.
Their sales mangaer whom i talk over call for their poor service is not giving any satisfactory answers . They are giving absurd reasons that sir its a machine we cant do anything anything can happen.