I LOST ALL MY IMPORTANT CHAT LOGS!!!!

Im verrrryyyyyy upset, I have lots of old chat logs that Ive had for years with lots of important messages!!! I need those back asap! Ive been looking all over customer service and all they say is to sign out and back in! They have no solution! They literally lost all my stuff and probably for lots of other people too! I want my chat logs and contacts back!!!!!!

Riley111111111687954 about Skype for iPhone, v8.2.1