I read this somewhere and I have heard someone talk about being scammed in this manner.

I have been scammed 6 months ago.

Now someone is calling me from BTC REFUND DEPARTMENT. He said that I have under my name the bitcoins that have been scammed. But the way to take this amount is to synchronise my wallet with the address that the amount is under my name. The issue is that he is asking for 10% of the amount to be added in the wallet and send the new bitcoins to blockchain and then after 15 minutes all the funds will be in my wallet.

Has anyone had a similar experience? Is this true or is just another scammer?

Please let us take note of this. Bitcoin does not have a refund Department.

I was given a negative feedback for this reason. "A bot or a farmer. Makes registration in bounty campaigns after their completion."

I am not a bot but a person that participated in swaphub bounty where I was given this negative feedback. Here is a link to my proof of authentication https://bitcointalk.org/index.php?topic=5277165.msg55297803#msg55297803

What do I do to appeal for this negative feedback to be removed?
Thanks.