Poor Service at McDonald's

McDonalds Manavoni (Heuweloord) was the best in Centurion area, however the past few weeks it is terrible. This services is extremely slow and there is always an item or ingredient they don't have. Yesterday evening I the only had coke, coke zero and not fanta or sprite. When I order the tripple chilli cheese burger, the did not have the sauce to make it. The chips portion was also less that 5 days ago, the container was only filled half.