Accused of **** specials

TOPS - a pamphlet was posted online with a sale. Buy 6 Van Looveren wines and get R100 off. When i got to the store i was told it's ****? There was posted on thier Instagram story 2 5L 4th Street wines for R200 as well. No comment. Now I'm getting accused of **** information because their Marketing team make a bols up!!??? Good customer service is you give the customer the price YOU advertised it for. Think you guys need a business 101 course