Lost Pokeballs, Lost coins

I have joined 3 gyms in the last 2 days, all of which defended the gym for approx 12,23, and 24.5 hours. I didnt receive my coins for a single one of them, not even after waiting for a day. I can understand one, but even when notified that my "pokemon returned" there was no longer any coins rewarded in the notification. Also, with the coins I did collect from previous gyms, I bought pokeballs only to have them DISAPPEAR, yes DISAPPEAR, about an hour later. All 24 just vanished. This is not right and if this app is trying to screw over its players, Im not having it. I loved the app because of what it set out to do- bring pokemon to life. But now, with no coins for defending gyms and pokeballs just seemingly disappearing, why should I waste my time?

samserenades about Pokémon GO, v1.39.1