I wasn't sure exactly which thread suits my questions. I didn't want to crowd this forum with another thread so I decided to post them here.
This is not really related to retention....
I have a biz plat card in use since February of 2022. I had another biz plat before for several years until then. I applied for the current one and after it was approved I closed it. I received SUB for both times. I received an invite via email for the current card with a stated SUB. I called Amex and asked if I receive SUB with this card even I got it previously on the other card. The agent I spoke with told me that Amex was celebrating a new card (anything changed at that time???) and offering an opportunity to apply for a new (really? it' the same biz plat...) card and I would receive SUB again. Then it turned out to be true. I cancelled the old card and this current card is the only biz plat i have.
Then I received another invite by email and by physical mail with 150K SUB. What do experts/experienced people think about this offer? I have read somewhere on this forum that some people (may be just a very few) keeps applying for the same card (maybe the biz plat) and keep receiving SUB.
If successful with a new card, I am planning to cancel the other card before AF is due.
My history with Amex is, I had Starwood card a couple of decades ago for a few years and closed. And the initial biz plat I had for several years until Feb 2022 and closed. I currently have a personal Hiton Honor card, a biz plat and a biz blue.
Thank you.

michaelmorio