I put "quanto" instead of "o quanto" and it was counted wrong. Seriously?!??!
Yeah... thats correct. In such context ("how much" in the middle of the sentence, not meaning price, but "how much+subject) you have to say it this way
haha, tá. obrigado!
"Eu não sei quanto isso custa" (i dont know how much that costs). "Você nunca saberá o quanto isso significa para mim" (youll never know how much it means to me)