It looks like a similar situation to the last Cottonelle offer. No instant posting of points with a 5 day pending period.
Thank you for contacting MyPoints Member Services.
Please be informed that the points will be credited to your account within 30 days.
We apologize for any inconvenience and thank you for your understanding.
Edited to add: It looks like the 1000 points posted pretty fast. I see them in my account with a one month pending period.