I dn't order but you charged me on my credit card

I was wondering why you charged me on 6 march 2016 for Euro 74,44?
I didn't order you, I didn't receive anything What's going wrong??????
The next information is on my Creditcardaccount:
Paypal * UHOBBIES 35314369001
Game, Toy en Hobbyshops.
Euro 74,44
Would you please return the money on my Bankno. NL18 ABNA 0443648166

Mine Creditcardno. is 5220 7801 1025 7110 R.P.M. Pelders Valid Thru 02/19
My inlogname on your site is Olivier Pelders, E-mail djbrothers@Hotmail.nl