If people want to do upgrade, DON'T CALL US number anymore, as it appears that the supervisors are informed they don't allow any upgrade. I have an OC6 870T and I was checking whether I can convert it to a QP91. The rep just put me right on hold and when she got back it was already converted to QP83. WT...
I tried with British line, although the ones that I talk to won't to QP91, they were not aggressively converting it.
Maybe I really had bad luck, but just to give you guys a warning.