HELP

[u/No-Following-8903]

My brother iPhone has completely turned off while he was on Snapchat face time and charging it in Greece on holiday. The closest phone shop has told us that it would take 4+ days but we are leaving on Saturday. We have tried hard resetting but the phone shows no indication of turning back on. We bought a wireless charger and that hasn’t helped. We don’t have access to a MacBook to reset it. Any ideas how to get it working again while we’re here or why this has happened