Use Caution When Using Yerdle
I'd warn against anyone using Yerdle. If you have a problem (ie: you win an auction, pay for shipping and your credits are transferred but the seller NEVER send your item), Yerdle does NOT respond to your inquiry or resolve the issue.
Another HUGE flaw of Yerdle, is that they do NOT allow you to ship your items at the post office. If you do, they will not process the shipping cost your winner paid, instead keeping the money for themselves. Yerdle will only allow you to ship through UPS, using their special prepaid shipping slips that never cover the cost of shipping, forcing you to pay out of pocket for the next size up and then Yerdle pockets the amount over you must pay for the next package size up.
Yerdle is a SCAM.