Bad Customer Service

I had breakfast at wimpy in Blueroute Mall with my girlfriend and her mother. What bad service I have received at wimpy. Lets take you through this bad customer journey I have received. Waiter took us to table gave menu and told she will be back in 5mins to take order. Taking inconsideration it was the launch of the wimpy special( buy one get one free). She came back thirty minutes later to take our order at this point I was ready to get up and go to Spur rather. She took our order and again the waiting period started another thirty minutes down the line our food came. Toast was stone hard, bacon was raw and the order we gave to waiter was missed up between the different plates . She then took it back and corrected it I then asked to speak to the manager Yolanda who didn't take much interest in my complaint no even offering a cup of coffee on the for inconvenience and waiting literally one and twenty minutes waiting for food and doing the correction of mix up. She just said sorry we busy today and walked away. This is totally bad bad customer I need to remind you I was a paying customer and was paying for excellent service. I would like to be compensated in an voucher. Thank you