Data point:
March: Canceled personal plat after AF
Sunday, April 19: Applied for Ameriprise Platinum, pending, 10-12 day notice.
Monday, April 20: called recon line, approved. CSR explained they just wanted to verify it was I that was applying to ensure against fraud.
Tuesday, April 21: Received card via overnight courier.
Wednesday, April 22: made 6k purchase
Saturday, April 25: 25,000 points posted today.
Just that quickly!