Hi fhdahd,
The below is the extract from ITA.
Changes to your personal situation.....
If your situation (or that of your spouse or partner) changes, you should try to re-calculate your points score
before you decide to apply for permanent residence. To find out how to re-calculate your score, see:
http://www.cic.gc.ca/english/immigrate/skilled/crs-tool.asp
If your new score is lower than the minimum points score in the round of invitation from which you were invited to
apply, you should consider declining this invitation to apply. You should also consider declining this invitation
to apply if you no longer meet the minimum criteria for Express Entry.
WARNING: If you decide to apply in the above cases, your application may be refused and your application fee
will not be returned.
Some examples of changes which could result in a lower points score include:
• You no longer have a valid job offer
• You no longer have a provincial nomination
• Your language test scores have expired or upon re-taking them, the scores are lower.
NOTE: If you had a birthday since we sent you this invitation, and the change to your age decreases your points
total, this will not cause us to refuse your application for permanent residence.