Legend of Slime: Idle RPG

not sure

very frustrated I purchased the ad free forever for 10.99 I used all my Google play points and 5 dollars and change on my bank card. yet didn't get the product. so I said what ever I'll buy it again. but nope game throws me a error you already own this message and then gets stuck so now I lost money, lost all my points and i didn't get the ad free and to top it off o can't even buy it again if I tried because it give me an error. and it won't let me report it to service rep