I've confirmed this multiple times with customer care and my local branch head, who keeps saying that they are 100% sure there is a cooldown of 90 days be it accepted or rejected.
Even when my FK Axis was rejected, there was a 90 day cooldown period before I could apply. You were probably just lucky if there wasn't. For most customers, there is a cooldown period, where even if you apply after rejection, you will just get rejected again. Simply an unnecessary hit on credit score. If you're rejected, best thing to do is either ask for a reconsideration or wait, rather than risk another rejection, which will only reflect poorly on you when processing the next application.