Nikon India — Auto focus stopped after service

Address:

380024

I service my nikon 5100 at ahmedabad nikon service centre paldi 13 14 sahjanad complex paldi i submitted my camera and lenses for free service camp second day they return after service when i checked next day auto focus system in my 18 to 55 mm lenses not working so immediately i reached to service center told the situation but they can't accept their fold they give me 2800 rs quatation i shocked. I have bill copy and attached here..