What should I do?

Hi ladies, so I just made purchases online for my kids Christmas present and they’re all toys, my next door neighbor also have kids, so when my packages were delivered they were dropped off at my neighbors house, I did not go there as soon as I got the delivery notification because their gate was closed and they don’t have a doorbell, the packages were dropped over their fence, I have to wait after their kids came from school cuz that’s when they leave the gate open, well 2 hours went by and I went to take out the trash my packages weren’t there anymore so I figured my neighbors took it inside so I thought they would give it back to me. When their kids came back from school, my kids wanted to go play with them and I said okay that way I can go and tell my neighbors about my packages, my little one comes inside showing me a toy that she wants from Christmas and when I saw it I thought “omg!!! is this the same toy I got for my kids or did they had this before?” I just smiled and told her when did they get the toy and my kid said today, I was so angry and disappointed, I was really hopeful my neighbors would return my gifts and they did not, I don’t even know if I should go and tell them that those were mine or even tell them why they opened my packages, I always get my packages return from other neighbors but not this ppl, they me disappointed and angry at them :/