I have been scammed a few times on ebay by people selling fakes. I recently purchased 3 x 'alleged' lip glosses by Molton Brown. 2 x were used as gifts and I kept one for myself. When I opened it - the whole top section fell apart. I am certain this would not have happened on a genuine MB product. I re-contacted the seller who promised me they were genuine and offered to send me the receipt - I am still waiting ! Unfortunately I had already left +ve feedback.
RECOMMEND: Do not leave feedback until you have tested/used the products - even if it means waiting some weeks.
I am also aware that PowerSellers sell fake items.
RECOMMEND: Best way to avoid fakes is to buy from people who are selling a one off - ie -they are not trading in very low cost 'purportedly' genuine items. Avoid buying from sellers who are trading in large quantities. Many fakes are extremely convincing.
I recently bought some MB dispenser pumps off ebay, then on a trip to York, I discovered that you can buy them for just £1 each from their shops or their head office. 50p of this goes direct to charity. So please be aware when buying these items and don't be scammed into paying £4 or more for them !
RECOMMEND: Do you research. Always check the cost of items from the direct manufacturer - the people who make and sell them ! All big brands have their own websites. If you check the selling price at that time with them - then you'll know if you're getting a bargain or being ripped off.
I have loads of examples of the above - too many to list.
If you have any questions - please feel free to contact me.