Ridiculous

I played this game when it first came out for 3 months. I was unable to play it for 8 months since I was in a different country. I sign in using my information I used before and find everything is reset and my old nickname is taken. They keep insisting and going to their default saying its the users fault and not taking responsibility of the chance that there was information deleted on their servers. They were trying to convince me that I used the wrong sign in information or a different one. Niantic, answer me this how is that possible when I solely created a trainer ID for this game and I dont have any other sign information besides that? Worst customer service. Nintendo shouldve picked a better company to run this game. Only if I couldve given it a zero star

KaosThry about Pokémon GO, v1.37.2