I accidentally caused harm to someone in need - need advice on repentance

Wa ʿalaykumu s-salām. So today was my friends’ and my last exam and we wanted to hang out at school a bit longer, so we ordered pizza and fries. It cost about 2500 PKR (which is a lot for us). The delivery was supposed to arrive an hour later, but nearly two hours passed and it still hadn’t come. I had to leave and my friends told me to call them when the delivery guy arrived because he would call me. I said okay and started guiding him to the school. Long story short, my friends ended up leaving because they had urgent things to do and couldn’t wait anymore. When the delivery man arrived, I found out they had gone and it became a mess. He told me he really needed the money and that if I couldn’t pay he’d have to take the loss from his own pocket or give the food to others. I’m a minor and couldn’t pay online; it was supposed to be cash on delivery. I kept apologizing - we weren’t being careless on purpose, we just genuinely wanted food and it got messy. He said this would come out of his pocket and I feel awful. I told the pizza place what happened, but people told me to leave it be. I can’t stop thinking about how cruel this might have been to him. How do I repent for this? I’m thinking that next time I go to that pizza place I’ll try to find the driver and give him the money, but I don’t know when that will be. I’m really upset and don’t know what to do. Please, any advice on how to make amends and seek forgiveness from Allah? 😭😭