Looks like the host removed the 22% discount.
Did you contact the host prior to booking? If so, they may have seen the discount and removed it. Sometimes the system will double up on discounts (i.e. promotional 10% off + 12% off weekly stays) which really wasn't the intention of the host.
Another option would be to reach out to the host and see if they'll honor the original fee for the nightly stay. If they agree, they would send you a 'special offer' with the correct amount.
Best of luck!
@Bryan496