I just received my Visa Category 1-5 anniversary certificate, so I called the Plat line to see if I could use it on an upcoming stay at the Ren. LHR in November. The certificate expires in October, and the property is going to be moved to a category 6 next month, so I asked if I could get an extension on the certificate... flat out NO. NOT POSSIBLE. Asked if they could offer me another booking with the certificate, I explained I'd have no other qualifying stay this year... didn't seem to matter at all. Very disappointed... Has anyone had better luck that I recently? Any tips?