Flight price dropped $400 after booking through Venture X portal – any luck getting more back?

Booked a BOS–CHC flight two weeks ago through the Capital One portal for about $1700. Got the $50 refund from their price drop guarantee, but now the same flight is around $1300 on Google Flights.

I know it’s past the 24-hour match window, but has anyone ever gotten Capital One to honor a bigger refund after a drop like this? Feels rough being out $350.