Apple Pay declined my dispute. Need some advice

My son, who is a minor, took it upon himself to send his brother $550 and then $1404 of my money thru Apple Pay. This was my entire paycheck. Plus my xmas bonus. I did not authorize either of these transactions. My son was trying to do a good deed because he heard me talking to his brother earlier and heard him say he needed money for bills. When his brother received the money on Apple Pay he assumed it was me sending it and paid bills with it. Apple Pay declined my dispute. They said because money had been sent before to the same person they won’t reimburse me. What does that have to do with the fact THESE 2 times I didn’t authorize money to be sent. The fact that a minor sent it should be cause for them to reimburse me. Am I wrong for thinking like this? Need some advice. Thanks