Firstcry.com — Wrongly sold me membership plan stating that all vouchers can be used online and as well as in store and now not cancelling member

The store in Indore told me that I can use their membership vouchers online as well as in-store and online, they knew I do not stay in Indore and promised me that I can use it online, when I tried using first time it did not worked, and support team started saying that voucher are meant for stores only. I explained that I cannot travel each month just for a purchase to Indore so either enable online or cancel membership and they were not ready to do either, the store and support kept calling me telling its my mistake that I took membership