You need to follow-up with the APA. If I recall correctly once you take and pass the test you need to order the certificate yourself. I believe that's a recent change they just won't send you one.
I just recertified this year and they changed the certificates - if I wanted one I had to order it myself. There's no charge but you think they could just send it out.
To my amazement they are offering some webinars for free everyone once in awhile and occassionaly with credits. If I didn't work for an employer that supported my certification then I would either let my CPP lapse or take the test every 5 years. They've gotten way to expensive and all the credits have to be approved by the APA before they count now.
I contacted them once about having a lifetime CPP after bring certified for XX years (mine was over 20 years), like SHRM does with the SPHR, and I got "we'll look into it", but never got any further response.