Well, before I was just a 1/2 NL poker player, so I got pretty much no offers at all.
Then after that I've had 4 trips.
1st trip was on someone else's hotel room, I played just enough to get 2 weekdays comped (around 60 comp dollars)
2nd trip was on 2 weekdays, I played enough to get better comps (around 60 comp dollars)
3rd trip was 5 days starting June 10, (4 days comped, 150 bucks + taxes for saturday). (around 100 comp dollars)
4th trip (which I just got back from tuesday) was 5 days starting June 24, 4 days comped, $99 for saturday (around 400 comp dollars + discretionary upgrade to black card when i asked the host)
Next trip starts on July 8, 5 days, 4 comped, $119 for saturday. Depending on how things go I could earn anywhere from 400 - 800 comp dollars
Yeah I'd definitely say that's the problem. Your other older trips, when you were earning very few comps at poker or less than $100 playing less, are dragging down your average, and thus you are being rated at something much less than a $400 comps a trip player. You can debate whether this is fair but it would seem to be the way the system works. If you're really concerned about getting Saturdays comped, you might try talking to someone at the Borgata and see if they can wipe out or reduce the influence of some of your older stays, especially if you earn a similar amount your next trip, at which point I'd say you'd have a strong case.