Not enough appointment available in Pearson VUE for exams

Hi,

I don't know if this a appropriate channel to ask, but I have a problem with appointment availability for exams in Pearson VUE. I am working towards an MCSE certification and I have two online proctored exams scheduled for December and I am not 100% sure that I can pass one of the exams, which means I need to take the exam again in January. Currently, if I open the exam scheduler on Pearson VUE's site, the free appointments are very limited, almost all are taken already. Could somebody form Microsoft ask Pearson VUE to extend the testing capacity or push the deadline for the retiring exams a couple of months? I know that this is a last minute chance to take these exams and I should took these earlier, but this whole year was a mess for me and I pretty sure that I am not alone with this situation. 

Thanks!

David