Shocking service at macdonalds Montague gardens

The worst service you can find, two people as customers in the fast food and took 30 minutes without any notification of any delay, when my son went to the front to ask how long the food will still take the managers assistant told him to go sit, i the. Approached them and cancelled the order, requested a refund and two days later still haven’t received the funds, I then callled the call Centre 5 times where 5 ladies told me they will call back which they never did, I had to sit at the branch to try and get some answers , the manager went to hide at the back and no feedback was given.