Have a search on eBay for the same item, i bought a set of vaults yesterday for £8 less than CRC and they arrived this morning from CRC
Looks like they’re running loads of ebay accounts
I’d say it’s actually fraud.
My guess is the eBay seller is taking your money via eBay and using stolen card details on CRC to pay. By doing it that way there’s no link between eBay and purchasing stuff via stolen cards and the eBay feedback is good so people continue to buy.
Problem for you is that CRC know the goods were posted to your address and there’s no comeback on the person who placed the order of police were to get involved from a fraud perspective.