I'd want to maintain the French aspect, esp if it's an alternative to RSVP.... Strictly: Très courte réponse attendue. My preferred: Tout courte réponse attendue. So maybe TCRA instead of VSRA...?
I'd want to maintain the French aspect, esp if it's an alternative to RSVP.... Strictly: Très courte réponse attendue. My preferred: Tout courte réponse attendue. So maybe TCRA instead of VSRA...?