I think you should report that because that charger you have is the OLDEST SOny ERISSOn CHARGER VERSIOn, and the guy you requested it from did not say anything about you receiving a charger which is not compatable with the mobile.
SO QUICK REPORT IT BEFORE HE SPEnDS YOUR POInTS....................
if its too late or they wont accept the mobile or sum other excuse which stops you from getting your swapits back, just get a new charger from a shop....
if you cant be bothered spending about 15pounds for a new 1 just get 1 from a carboot sale or summit.....
but if i wer u ill report it right away.....
by the way dont stop swapping just bcoz that guy did that......
happy swapping......