Asus India — non refundable advance service charge

Address:	Chennai, Tamil Nadu
Website:	www.asus.com/in

I owned a asus zenfone 5 mobile. Now its is over 2 years, so it is not under the warranty, recently there was a software fault so i took the my mobile to asus authorized service center (F1 info solutions & service pvt ltd) in chennai, mount road. They said that software correction charge is rs 500 and i have to pay 250 rs in advance and remaining i have to pay while picking up the mobile,
While comming for picking up the mobile, they said that they cant do the service and returned the mobile, i asked for my rs 250 which i paid as advance. The manager said that the 250 rs is a non refundable, as per the rules and policy which i have signed during the submission of my mobile does'nt contain a line regarding non refundable charges of rs 250. They gave only my mobile. My 250 rs had gone.