What was the gift supposed to be? You could ask your friend and then do a specific search for it.
Sometimes the system has delays and you could try to wait 24 full hours just to give some room. However, after that time, you still don't have the gift or item, file a ticket.
To access the ticket system, there are two ways.
Bottom of the page:
and
From the Help in the drop down from your user name.
For Missing Items/Gold