Dude
" What to do is go to your Paypal account and open a dispute by clicking on the Resolution centre" button and then the "dispute a problem" then tick the "item dispute" then fill in the item number etc in the box and continue.
The seller will be sent and email via Paypal to which he has to either send you your wheels or the money you sent him will automatically be credited back into your account in 14 days if he does nothing
I got fed up a long time ago going through all that email tennis so now i just go open a dispute as it gets the results with less hassel

Regards
Ian