Item Substitute fees charged as fee's by eBay . com, What is this ?

[rare_arts]

Hi,

Confused. Need your guide and understanding about fee,s charged to my eBay.com account under caption "ITEM SUBSTITUTE FEES". 

Is it under eBay policy or new development ?

What kind of revision or sustitute are under preview of this fee"s.

Thanks

[sockmonkeydave]

@rare_arts

Can you do a screen shot, this is a new one.