I posted this on a thread on the Budget Board as well, because I've been waiting for my webbies too:
I actually just got an email back from MyPoints because I cashed out on the 21st, and had not rec'd the email from WebCertificate.
They told me it's now 12-15 business days, and if I've not received the email from WebCert by 15 business days, to contact them again.
And I actually got a 'real' response, not a canned one the first time out.
Hope this helps.