Montana store - Worst service ever

I ordered pizza's for delivery on Thursday night (18 April) and the service from the driver, store and manager was truly the worst experience ever! I love the pizza's from pizza del forno and always order from them at home and at work. I placed my order at 18:30 when they told me that they are extremely busy and my delivery will take approximately 1 hour. After the hour I phoned the shop to follow up and was told that the driver is on his way. At 20:30 the driver phoned me and did not know where my address is. (I ordered from them many times before and I could not understand how the delivery guy does not know where he is delivering to.) I gave him directions and he arrived shortly after. This was more that 2 hours after I have placed my order. The driver then told me he did not have change at all and is not willing to go to the garage and get change as my bill including the delivery charge (R20) was R340. I had R400 with me. Certainly I am not giving him another R60 Tip for being more than 2 hours late. Honestly I didnt even want to give him the R20 delivery fee and eat cold pizza. I then took the pizza and told him to go and get change and come back. He did not and just stayed in front of my house. When I went back out he suddenly had R50 change which is still short. I phoned the manager at the shop very frustrated at this point and he could not give me any solution. I was at this stage so angry that I requested that the owner phone me on Saturday as Friday was good Friday, I wanted to report this **** service directly. I even told the manager that the driver gave him the blame for not knowing where I live and apparently they dont even deliver in my area. The are appropriately 3km from my home. However no phone call from the owner. The next moment the driver got another R20 and gave me R70 on my R340 bill. I am a customer that supports Pizza del Forno at least 8 times a month. And I will never ever again! Worst service ever.