I can send text, email, call someone. Travel apps, say, Ryanair, Easyjet, Booking, are working without a single glitch, including push notifications. Version

I can send text, email, call someone. Travel apps, say, Ryanair, Easyjet, Booking, are working without a single glitch, including push notifications. Version 8 of Google Maps and version 3 of translate (the one with the 200+MB language packs that people actually understood, unlike the AI-powered 30MB ones in the new versions) don't need Google Services Framework, neither does Osmand. Netflix, Spotify, amazon videos work fine, amazon anything works fine. Even whatapps (which I sadly had to install due to the lack of other channels with a few groups) functions as expected. The only app I'm using and has problems is Monzo: most of the push notifications don't come through, only sometimes one of them, and you have to - gasp! - manually refresh by pulling the screen down. I'm really curious about your "guarantee".