Getting charged even through they took money off my item

[charlyfc]

Can someone help ive only sold 1 item since having my account and they charged me by taking money once i sold my item now they are charging me £3.50 and have suspended my account what is it for and what do i do?

[tobiasd4]

When buyer pays you via paypal, paypal charge their fee immediately, 3.4%+20p.

Ebay invoice you monthly for their 10% of sold price+P&P.