FALSE COMMUNICATION

Good day, we received an emai from Mc Donalds regarding the special for the today, which I read and understood wen I got to Mc Donald in crown mines I was advised by the cashier that I can only buy for the special for my self which the email never stated that nd we where advised that, that was suggested by the manager in the morning, which I do not understand if that was the case was the whole office people supposed to go and queue at Mc Donalds, Kindly advice