Maruti Suzuki India — baleno ac condenser

Address:

400063

I bought baleno delta in feb 2016. Till now i my car has completed 8500 km.

Suddenly ac of my car stopped cooling.

I took my car to sai service, andheri mumbai.

Their service advisor told me that, they will first check what is the issue (For checking cost is 3900 rs) and then will give me a call for my confirmation to go ahead or no (If there is any part change or something else)
I got a call same day evening that condenser of my car is damaged and it need to be replaced (Cost 4600)

Query :
1. I have not banged my car anywhere and car is just 2 year old (Approx. 8500 km), than how come my car condenser got damaged (As per my experience condenser get damaged only if car get banged from the front)
2. Does this cost 8500 rs (Checking price – 3900 + part replaced cost 4600) justify ac issue.
3. If condenser get damaged within 2 years without getting banged, than i think i got my car with faulty condenser in - built.