I'm starting to suspect that the call timing is not based upon only on your RCAF invovlvment etc. I think your location basically is, but they are having to slot blocks of tickets where they can fit them, and since that's going to result in some areas with just a few seats left togher they are backfilling those with people theorectically down the chain.
For your reference I'm in the varsity level of RCAF donors and have 8 season tickets. I made my order the day the online site appeared and I did not get my call till Tuesday. My seats are in section 333, which at first I was disappointed till I realized those are on the loge level. One of the benefits of a later call could be you end of in the loge level, which as along as you are between the goalines, offer the best overall view of the field.
Shivaun will answer an email if you send her one and are concerned about not getting a call. I'd just be as polite as possible they are covered up over there and working frantically.