Worse service and that from a manager

On the 12 December 2020 I went to Spur in Lambton Germiston wanted to buy a salad I waited over 15 min after signing myself in for help. Finally the so called manager come to help,after assisting people that come in after me .I ask her if I can place my order for take away she said I must sit and walk away. I waited for another few minutes then finally she came back and I ask her why would she leave me and help the other customers that come in after me. She was so rude and in patience with me. With that attitude I don't think she is fit for the manager position. Did even apologies she walk away well I was talking and someone else come to assist me.