Save Game not working when APK downloaded from Google Play

I’m really worried. Despite of trying to reach Epic games and unreal support staff repeatedly. There has been no communication to the mail’s I’ve sent . No one bother’s to respond in any way . Which brings my concern that i won’t be able to publish my game since publishing it requires working save game data. If someone is reading this and has a better(faster) way to reach Epic games staff please let me know. Case #1445902 .