I suggest a "cancel" option for Trade and Auction offers.

I did make a few offers myself, and I've changed my mind.

This has been suggested before, and still no support. Like someone on the last thread said, this could definitely be abused. A rich person could just bid an insane amount of Tu then wait until the last minute to pull their high bid then bid low to win it.

@Graveyardfox: So you're saying someone like me who bid on a pet and then needed the TU to buy something else (an item) should be screwed?

I disagree.

Yep.

Either pay attention to your finances carefully and be sure to have Tu on back up in case something does come up, or don't use the auctions at all.
If the pet wasn't worth enough for you to even want to carry through with your bid, then why did you decide to bid on the first place?

Bidding is pretty much like buying anything else in the game. Although you don't get the pet/item right away, you pretty much bought it. You're obligated to buy it, which is why the Tu is taken from your account upon bidding it.
Suggesting you can take away your bid is like suggesting you can return things to users' shops. It screws more people than it helps.

Look at it from the person putting the pet up for bid.
They put up an albino for say... 6mil, with a 500k increase. If it's a decent albino, they're expecting people to bid it up to around it's worth. (say 15mil.)
But someone comes around who has a lot of Tu that they can just throw around. They bid 50mil.
No one is going to outbid that.
Then, a minute before the action ends, the person retracts that bid of 50mil, replaces it with a bid of 6.5mil, then walks off with a pet 50+% off, screwing over the seller and the other people who might have wanted to get that albino fairly.