I relisted an item yesterday without making any alterations to the price and it has relisted at $50 instead of $140 and someone has now purchased it.

What do I do? wear the loss or try and get them to cancel the transaction? $50 wont even cover the cost price let alone fees and postage.

This is not the first time I've a relisting glitch, last time it bumped the price up though, so I didnt sell any of them and was able to revise.