i have got a chance to buy some replica abarth alloys for my wifes car.

problem is the seller doesnt have any bolts with them.

i read somewhere that you shouldnt fit original bolts on aftermarket wheels due to wear rates.

is there anything in this or not ?

Wear rates sounds like nonsense. However, you are right. VW OEM wheels use radius seats, most aftermarket wheels use taper seats.

http://www.clubgti.com/forum/showthread.php?p=1447836

You'd need to find out what bolts your replicas use, and get the right ones...

he is claiming that they are oem but i think they are reps.

dont know for sure

Well regardless of their original/replica status, either way you'd need to make sure what bolts they use. VW OEM are radius seat, but it doesn't necessarily follow that Fiat OEM are as well.