Dissatisfied liquor License holder turned away over weekend.

Saturday liquor store shopping at Makro CapeGate. Previously I was told by a managerial type employee along side another what seemed to be a higher supervisory type employee that I should have a copy of my liquor license on my phone for ease of use, a suggestion from a Makro person high up in the ranks, that I then followed. Today I was told by another person that I had to bring in a hard copy of my liquor license, after I told her that this was ridiculous and that the staff should communicate better, she turned her back on me as she said she follows the law and that is what the law says. On that point I challenge anyone at Makro to show me an actual Law that stipulates that a license(hard Copy) must be brought with for weekend shopping. In addition to having my license and proof of payment on my phone, a copy of that license is held on file right at the door. In any event, some one tell me which makro employee has it wrong and which has it right? I feel that this to and fro this afternoon was uncalled for and just outright a power struggle, very dissatisfied.