Served an expired roll on my burger

Dined at Reno spurs earlier on in the month of march on 5th ,Compliments to the waitress who served us,she was exceptional,my brother ordered a mawhawk combo and i opted for something light which was a chicken burger,on the first bite i realised the burger was just too dry so i requested mayo which the floor manager hesitated to give me ,later on she brought it to the table as i was struggling to swallow the food ,on the second bite the burger bun began to crumble like cous cous,i asked for the floor manager who became very argumentative and defensive that the bun was fresh,to prove her point she went to the kitchen and brought a packet with one bun remaining in it,i went straight to the code date information ,to my shock the buns have already expired that same day @ 5 pm,i took pictures of the packaging,whats most saddening i took the matter with customer services via an email and nobody from the spur group ever bothered to contact me,this spur tends to be very quiet with no business as a result they serve their guest expired products to save costs i gather.I dont see myself advising anyone to dine in with them,even their salad dressing has bubbles in it.Im trully dissapointed.