Call The Easter Bunny (1987)
900 number campaigns typically had the lifespan of a small rat, but “Call The Easter Bunny” made it through at least four incarnations of the holiday, as I distinctly remember one of these ads airing in 1990. Of course, I have no idea if it was the same hotline.
From a 1987 KPDX airing of “The Easter Bunny Is Coming To Town” — donated by retroCCN