If I have two salt wives (Response: Kneel 2 influence to save an Ironborn character from being killed. (Limit once per phase.)) in play and can spend two times two influence I can save two Ironborn characters. At least this is how we played this in our group. Because the limit means one save per phase per salt wife.
But a card like Seductive Promise seems to get handled differently: Response: After you win a P challenge by 4 or more total STR, choose a non-unique character controlled by the losing opponent. Take control of that character. Limit 1 per phase. One could argue if I have two Seductive Promise this should be like the salt wife's response. Can you explain to me what's the difference? Or do we play the salt wife wrong?