Mark bikes
No warranty and service

I had purchased a an electric scooter (mark bikes) from chabra bikes and and batteries, 31 raja garden on 24 th oct. Its been just 3 months when a problem was detected in its charging.since it is in a warranty period I went to the showroom and to my surprise, the showroom was shut down, and no-one is picking the given numbers.there is no other outlet of mark bikes. I havent got the free service too. PLEASE HELP, BILL INVOICE NO R-24/10-11