I am a Silver Elite user just got my card, I have a newbee question

Last week spending two night at the Portland Downtown Marriott i was upgraded to conciege 20 floor level she told me it was in the computer as an upgrade.

right now i am at the Fremount Marriott but was not upgraded

what was the reason why ? and should i ask for it if its available?

i will be in Sacramento tonight and San Francisco JW Marriott tomorrow

Any tips

Thanks in Advance