Billy G Christmas dinner waste

So we booked a month in advance for Christmas supper at Billy G Silverstar we arrived at 18:35pm only to be told to come back at 19:00pm we came back at 18:50pm only to find a queue of people in front with no reservation or holding deposit requested as they asked us and we're helped to find tables finally at 7:20pm we get to the counter before we can be seated we were forced to pay yet other guests without reservations paid waiters upstairs in cash with a bigger tip how is that fair so we get a table that isn't up to standard it's in need of mending we were then shifted drinks weretc ordered once we got seated we only received them 15mins later called 3 times to speak to phumalani the manager finally he gets the call then we get cut off strange though once seated at 8pm the restruant never even came to 75%pax limits yet staff couldn't manage the load cutlery were a shortage for all guests menu wasn't full buffet as promised never coming back as manager till now as I write the review is still to respond how will he be fixing my awful experience