@MojangSupport I bought @Minecraft years ago, and do not know the transaction ID. Is there a way to find it? I also don't know what email I used. I think I bought it way back in 2010-2013 era, so I don't even recall ever needing an email. But now I can't play it just username...
For information on how to locate your transaction ID, or recover it if you no longer have it, please see https://help.minecraft.net/hc/en-us/articles/360029977371-What-is-a-transaction-ID- … ^TM