Bad Customer Service

27th October 2017, I contacted Doppio Zero, Sandton and ordered three chicken mayonnaise and chips to be delivered to my place of work. This call was made round about 11:00 as the one person who formed part of this order had to leave at 12:00. I made a follow up call at 13:00 and was promised the order was on the way. The order arrived at 13:30 and only to find only one of the three requested was in the order. I send the delivery person back with the order and my number, as asked that she request the manager to give me a call. At 15:00 I called and asked to speak to the manager, however I was told they are too busy for the manager to take the call and that I will be contacted back ... needless to say ... a month later ... no call back was received. I feel saddened to think that I pass the restaurant often, never to buy from them again