I think the gifts you had are gone forever :( but you should tell your friends to send you gifts twice a day! :D YES IT CAN HAPPEN 1 in the morning and 1 in the evening <=> 2(per day) x the number of your friends(if you have 50 friends) = a full holiday tree(which you can now buy from the market)! Just remember to use your gifts so that none gets wasted! I hope my advice is helpful!
u can also go to the market and look under trees. since u only get 1, the first tree u should be the ornament tree. im not sure if this works or if ur still wonering wat happened.
ur frends can send you gifts every 4hours(as said in the wiki). believe me.