I had the same issue (Oct expiration, I thought I had until the 30th, but only had until the 9th).
The first CS agent told me too bad; when I asked for a manager, the manager told me too bad as well.
I called back 2 minutes later and the CS agent said no problem. Go figure.
All is well that ends well (which for me means using a Diamond Cert next year for a week in Kauai!)