eat in for 4 for under R150 is FALSE

I went to Woolworths to purchase the eat in for 4 for under R150. When I got to the till my bill was over R160 (I purchased nothing else) the manager tells me the special is choose for things not eat in for four people! Complete false advertising! While I was @ the store another customer bought something that was marked 30% off and it didn't go off! I am furious, firstly at the error but secondly that it was imp**** that I cannot read and the special is \choose four items"rather than eat in for four people. I am an educated person"