I have never had a HP from BOA for a CLI. Last CLI from BOA was October 2012. But I have heard of others getting a HP also so YMMV.
Personally I think the OP made a simple error by applying for a CLI on a secured card. When your card is secured by sending additional funds you automatically get a CLI. Since it was secured and applied to get CLI BOA looked at possibly unsecuring card to issue CLI which resulted in a HP.Just my opinion on what may have happened.
How do you send additional funds to your secured card to increase the CL?