That makes the seat around 6 years old... I am 100% positive that it RF to a minimum of 30lbs.
It is very confusing because the stickers will state exactly what you said, BUT there will also be more info stating that it *may* be used RFing between 22lbs and 30lbs (or 35 if you have one of these models).
I know without a doubt that it can RF to a minimum of 30lbs.
The other way you can check is to take the serial number off the seat and call Dorel Juvenile Group. They should state exactly what I have just told you as well. They will also be able to send you a new manual so that you can be positive you are using the seat correctly.
Please make sure that if you are using the seat FFing, that you do not have the bar in the top most position using the harness. This is for booster mode only to move the headrest a little higher. It is *not* safe to use with the harness in this position. There will be a warning imprinted on the plastic next to the top harness position and it can be difficult to read, but it is there.
These seats also have a 6 yr expiry date, although a few of them have popped up with 8 yr expiry dates as well. That might be something to check into as well.
Edited to add: It may state RF 5lbs - 22lbs and then if you read the wording under it, it will state this restraint may be used rfing between 5 lbs and 30lbs with a height of 19" - 32".
Please note that height limits are guidelines... as long as the head is contained within the shell of the carseat your child can remain RFing. There is NO standards for height limits set by Transport Canada. Companies put extremely conservative height guidelines on their seats to cover their butts. However, the majority of them have switched from having height guidelines to stating that the child can remain RFing as long as the head is contained within the shell OR if it is an infant seat, they will now state the child can remain in the seat until there is less than one inch of hard shell above their heads. These last two statements are height guidelines that must be followed.