I'm thinking of switching to the Infinite Privilege card to get Zone 2 Boarding and giving up my current Amex Gold. I'm looking for a few answers first though:

1) When do they tend to offer the 50k bonus or other promotion? Right now it's 25k so I prefer to wait for a better offer
2) Am I able to get this card without being a client of TD? I prefer not to switch banks.
3) How does the 50% off J for companion work exactly? Do you call in and get the discount over the phone or is it a refund on the cc bill?

Thanks!