Amazon India — order cancel with my permission

Address:

Kolkata, West Bengal

I placed an order of otg pen drive on 24th jan but after 8hr i check that is cancelled with out my permission and adviser said that we can't help you purchase again with new price.

Reason of this complain they are showing that we provide the offer for buy the product but when we buy it then they are saying no and back amount in there wallet for re purchases the product with higher rate.
Customer service providers also say you do want you want we can't do any thing.