eBay

The way I understand it I can end my good till cancelled listings at any time and not be charged for it.Is this correct? I also think not sure but think that I can end my auction style listings as long as there is 12 hrs left in the listing,and wont ...

If ebay relist my item and I still have some of free 50 left to use for the month and I also have some left from a promotion will they still charge me .35cent to relist the item and is depending on the fixed price or auction price?