Here’s what consumers have asked with answers from HotelPlanner staff and previous consumers.
I attempted to email, submitted a support request, called numerous times, requested call backs (received 0), attempted to chat and was continuously ignored or "disconnected", never once reaching anyone that would or could help me. Customer Service at HotelPlanner is nonexistent.
HP's staff is full of deceitful and despicable liars. Do not use HP for planning any trips if you wish to have smooth, happy travels.