Recently I booked on Accorhotels.com for a 5 nights stay, the cashback was not tracked and when I lodged a missing cash back request the reply was unsatisfactory.
They are just not ready to pay up the amount.

You can check up their reply below.

Having chased your claim with the merchant network it unfortunately appears that your claim could not be approved. The comment that has been provided regarding this rejection is that 'Another marketing channel was credited with the sale'.

This comment is designed to inform us that Top Cashback was not identified as the last referrer to this transaction. Please note that this is not suggesting that you used another cashback website but indicates that another entity such as a search engine, comparison website, coupon code websites etc. may have become directly or indirectly associated in some way with this transaction.

Unfortunately the entity that has been identified as the last referrer is not specified to us due to strict confidentiality reasons, and therefore we do not have this information to pass on to you. However please note that it is very unlikely that this outcome has been a mistake on the part of the merchant or any of the intermediary agencies that may have been used to arrive at this decision as there are robust systems in place to trace back the sale to the last referrer.

Following an outcome of this nature there is invariably little we can do as the merchant will not pay out to ourselves due to our not being identified as the last referrer. We can only advise that to try and help prevent things like this from happening in the future that you always clear your cookies prior to making a transaction and that you then go on to make a transaction immediately and wholly online.

We are very sorry about this unfortunate outcome; we can appreciate that this can be a very disheartening experience and we hope that any future transactions you may go on to make run more smoothly for you.

Thank you and have a nice day.

Best wishes,
Top Cashback Support.