I Bought Minecraft a few months ago but now it says i dont have it

So a few months ago I bought Minecraft java edition But today i had to factor reset my pc because of a virus so now that i have logged back on it is saying i have to buy Minecraft again. I bought Minecraft java edition a few months ago for $17.00 so i would like a refund or Just give me Minecraft back please get back to me asap.