What to do if an item you have bought could be fake?

[golfvip101]

I have bought an item that I believe to be fake and I am looking for a contact number for ebay to find out what I should do.  Does anyone know a number I can contact them on so I can check what my rights are or does anyone else know what actions I have rather than just send the item back?

Thanks

[*guinevere*]

You don't need to contact ebay, just open a Not as Described case in the Resolution Centre using reason: Does not seem authentic.

You will be provided with a prepaid label to return for full refund. If seller hasn't sent one after 4 full business days escalate your case.