Cause to get higher, as a price at auction: 2 wds., 5 letters
Cause to rise, as a price on eBay, 5 letters
Hike an auction price, 5 letters
Increase at an auction, 5 letters
Increase the price of at auction, 5 letters
Increase the price of, at an auction, 5 letters
Increase, as market price, 5 letters
Inflate an eBay price, 5 letters
Keep raising, at an auction, 5 letters
Make pricier, in a way, 5 letters
Raise an eBay price, 5 letters
Raise in the auction, 5 letters
Raise the price of, at an auction, 5 letters
Raise the price of, on eBay, 5 letters