Just last Sunday (Feb 11) my fellow with whom I flew together and who had upgraded to Business with QCredits was denied entry into the Al Mourjan Business Lounge. I have QR Platinum, he has QR Gold status. We both were not aware of the rule change (which already is questionable as we earned the miles under the old rules); consequently we could choose to either both leave or to be separated. I am now really p.... and will direct my business elsewhere, if even Platinum members cannot enter with a guest who is flying business (and paid for it with his miles) I am no longer interested. And btw I also did not consider the attitude of the Lounge personnel at the entrance professionell at all and felt humiliated- we also passed the scan at the escalator but then were called to the desk like we committed a crime and sneaked in. Bye bye Qatar Airways