Says Buy Now when i have purchased this game 3 times

I own this on Microsoft, I bought this on Mojang over a decade ago and I have been playing on and off for the last 3 years now when i open the launcher my only options are buy now? What happened to my other 3 purchases? What is this scam that is being run you guys made me buy this several times i'm sick of this shit just let me fucking play the game that I ALREADY PURCHASED.