Prokard is useless when really needed

I have being trying to book accommodation using my Prokard vouchers for a specific period for months. I can never ever get availability.<br> <br> Non-prokard members are getting better rates than I am even with my supposed prokard rate.<br> I do have the reservations for reference.<br> <br> It seems like prokard is just a gimmick that I cannot use when needed.<br> I am getting better specials at Protea hotels at [URL Removed] and Agoda.<br>