My favourite restaurant excellent food and service...

My favourite restaurant excellent food and service specially when you set outside table it s amazing atmosphere. However, today 11/10/2020 I have arrived on time or even a couple minutes earlier and I have requested a table outside in advance and when I have approached the reception the employee she said she would provide me a table that has not got a heater and I have agreed to that. However, As I approached the table I realised that there is an unreserved table that includes a heater so I asked her why I wasn t provided the table and I was told that the table is requested for someone else however when I reserved my table I was told that I am not guaranteed anything I asked for so in that case why is the person who requested a heater was guaranteed it and when I asked for the heater when booking in advance I was not allowed it therefore, I had to wait 20 min ahead with my family in cold weather of my reservation in order to get a table of a family that finished their lunch because their table had a heater and even after I finished my lunch the table that was unoccupied with a heater that was apprently reserved for someone was unoccupied the whole time. Lastly, I am very disappointed about this service and expected better as I have been coming to this restaurant for a long time and this act should not come from a high class restaurant.