This happened to me. Sold a Blackberry on eBay and shipped with tracking. The seller claimed it didn't work with their network and despite me listing it as 'no

This happened to me. Sold a Blackberry on eBay and shipped with tracking. The seller claimed it didn't work with their network and despite me listing it as 'no returns' sent back a different (cheaper/older) Blackberry to me. I told eBay and they told me to contact the police but not before returning the money to the buyer and putting my account in the red. I immediately removed all my bank and card details from Paypal and requested my account be closed. I waited a week and opened a new account using new card and bank details. Thankfully they've never linked the 2.