Terrible manager

Afternoon Would just like to say I went and had lunch today at Maggie's home of the chicken pie with my wife, 9 month old daughter and mother in law. After we ate my daughter needed a nappy change so my wife found a table away from everyone and proceeded to change my daughter's nappy. So once almost finished I shed a male manager came up to her to tell her that she can't change my daughter's nappy there but must go and change it in the bathroom where a nappy station is then he continued with serious and just been rude. Nowhere at the place does it have signs to the fact of there us a diaper station in the bathroom and when I come fronted him on this fact no apology was even given to how he spoke and Comments he made to my wife. I found this too be terrible customer service in a restaurant where the food is excellent.