u/Agreeable-Fail1064

I thought that you can book hotels through JB travel and still use your hotel loyalty program. I booked a bunch of Marriott hotels and just checked in to the first one and they said I don't get credit for the nights I stay because I booked through a 3rd party. Anyone have that happen to them?

I'm going to get to Mosaic 3 this year, How do the mint upgrades work? Not sure if I should switch at Mosaic 2 and change my gold Delta AMEX to a higher level. Any advice and if there is a better card experience where I can get into centurion clubs flying with any airline, please let me know.