Was my iPhone hacked?

Over the last month, I've been receiving weird charges from the Monopoly Go game. I've never purchased anything from them nor have I ever purchased anything in a game. Eventually, my card declined because whoever was doing this had racked up over $800 in charges from that game. I already reached out to Apple about this a couple of weeks ago but they declined my request. But here's where it gets even weirder, I finally got around to checking my email after putting it off for several weeks & I seen some emails from Paypal saying that money was being sent from my Paypal to someone in the Phillipines with the last name Sandoval. How is this even possible? I tried to do some researching & all I see are people talking about how their kids racked up charges in-app charges. But I don't let any of my kids use my phone, so that doesn't apply to me. I'm so confused!