Nandos grassy park choc shake tasted like icy milk.

Waited 40 minutes in the drive through for 3 milkshakes, unfortunately my choc shake tasted like nothing but milk and ice, well done... The staff was also like slow pokes, unbothered and non shalont. People behind me got out of their cars 3 times shouting and screaming for their orders and the staff was like people who is deaf. Grassy park 5th Avenue off the M5