Apple India — iphone 7

Address: Pune, Maharashtra, 411046

I was having trouble with network in my iphone 7 so i went to iphone care in pune. They took my phone and opened it and the result was they broke something which affected the home button/touch id and now it isnt working. Now, they are denying of it and asking for rs 28, 000 if i want this problem to be solved. They were not ready to listen anything, they said it is in their policy and i cannot do anything against them. Ill just have to pay them 28, 000. So, i went back and took my sim out, changed one or two settings, re inserted the sim, and wow, the network issue was solved! But now my touch id isnt working and apple care are not ready to help/ or accept their mistake and solve the issue!