Thanks, but CIC doesn't guarantee this.
Do you know the link for this source of information?
Please find the CIC information below:
"Declining an Invitation to Apply
If you decline an invitation, you will be put back into the Express Entry pool of candidates (as long as you still meet the minimum criteria) to be considered in future rounds of invitations.
You may have to take steps to be considered again for the pool. For example, if you got additional points for a job offer but the job is no longer available to you, you may need to get another job offer. Or, if you got married or entered into a common-law relationship, you will have to update your Express Entry profile.
There is no guarantee that you will be invited to apply again. But, if you choose to re-enter the pool, declining an invitation will not have a negative effect on whether or not you could be invited to apply later.
If you do not decline an invitation and you do not apply within 60 days, the invitation will expire and you will have to complete and submit a new Express Entry profile and be accepted to the pool again to be considered in future rounds of invitations.
To re-enter the pool, you must complete a new profile and meet the minimum criteria."