Xiaomi India — Mobile phone camera again not working after repairing at service centre

Address:

Satara, Maharashtra, 415501

I recently serviced my [protected]@ xiomi service centre in shivaji nagar, Pune for camera repair They took a month for repairing. but just after 15 days the mobile camera again not working. I had to go 200kms from my house and spend 500 rupees for travelling for repairing and faced lot of problems for not having a mobile. As the mobile is under warrenty I want the company either to replace the mobile or give me refund. the company guys are saying to upgrade mobile software, What is the logic behind that. The camera should work with old version also. I cannot afford to spend another 500 rupees for repairing. And phone is under warranty for 12 months from purchase, from this 12 months, 1 month is taken by xiaomi service for repairing. and again if I submit it for repair at service cenre the will take again 1 month.