Can i still deposit this check from allstate?

yeah so i got this check from allstate and i didnt know where to put my account number on the check, so i put it in the back and i was moving so fast that i forgot to read what it said, and it says on the back to not write or sign anything below the line they had drawn...but i had already wrote my account number in pen on it....will they still deposit it or what can i do?