Read the following article and answer the question.

I happened to have bought a lot of stuff on eBay and paid for it with PayPal , which , guess what , takes money from my checking account . Which means anything I bought and paid for was reversed . Which means since then , I ' ve got two sellers emailing about seeing their money disappear from their PayPal account . I ' ve got one PayPal dispute and one eBay Unpaid Item Dispute on my plate .

What is the most likely reason the items are not paid for currently ?
The bank noticed unusual activity and canceled the charges .