I have an amount on my credit card which do not know what it is for. Want to find out what it was

[jadbay20]

I have an unknown amount credited on my credit card.  Want to know what it was for as think it was a scam.

[sandypebbles]

Other members cannot tell you what it is for

If the price does not match something you have purchased or have signed up to, you need to report it to your bank now so they can cancel your card an investigate

If you think it is a scam as you say, this is the first thing you should have done already, before asking other members a question they cannot possibly know

Does it say the charge is from eBay?

Do you allow other people to use or access your account?