Infinite Coin Glitch

I noticed I put a word to known and it gave me 4 coins but when i put it back to the level of “4” it did not deduct coins so I went back and forth and discovered a glitch. Just wanted to let you all know.

Strange. When I do this it deducts a coin and adds it again. Which browser are you using?

Chrome, I think I might have been using iOS though…