Look here if you have bought revoked gifts:

1. Accounts listed above includes the owner of this account and one of his alt. trading account.
2. If you have bought revoked gifts, contacting the seller via these accounts for resolution is more effective than contacting Dispenser.tf.
3. If needed, these are the accounts to be reported to Steam support.

How to use bot (sign in through Steam):
1. Choose game, choose keys that you have.
2. Click 'Proceed' and bot will send you a trade offer.
3. Accept offer (in browser). Try to accept the offer until such time when green notification will disappear in steam.