My kids are younger than yours, but something I've seen that works is give them a whiteboard with chores listed on it next to their names. Have them check them off as they get them done, or have them ask you to double-check so they can get credit for it. A whiteboard like this hung in a semi-public place like the laundry room or kitchen can go a long way. It helps give them a sense of accomplishment and removes any confusion or heresay. Just like when you are at the office, put it in writing if you want it to get done.
Just my
