sorry , I meant to play king of the towers , I wanted to contact the moderators of the game, but can not find the contact, if I do know they are grateful .
Did you check your inventory after this happened? Maybe performed a refresh and then checked? Because the items you find in the Treasure Digging event should be added to your inventory, the minute you found them/dug them up!
Could you please check this and see if you have them nontheless @sergiomorales? =)
If this is not the case, I do suggest you contact the game developers by means of their support with questions and feedback. Click this link http://towerdefense-ag.shinezone.com/help.php to make a ticket for support about your question please, ok? Thank you! =)