So I was about to buy 50 silk and this message pops up, after i already logged on and clicked to pay the money

I go to my bank account status and i see 5$ have been taken.. I log on to paypal again and it offers me to finish the payment (the click the pay 5$ blabla). Anyone else got this problem? I dont know if I should try buying silk again with paypal and end up getting scammed like this, if you can call it a scam. What should I do in this situation? :s