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.

Know who you're dealing with !!
"If you've only ever met someone online or are unsure of the legitimacy of their trades, take some time to do a bit more research. Do a Google check or search on internet for others who may have had dealings with them"