Apache Pizza in Balbriggan

Today I ordered food, was delivered earlier which was good. The only problem was when the delivery driver gave me the food i paid him 33€ ( the cost was 32.14) , the driver didn't give me the change and just drove off. I called apache and they solved everything, the driver came back and gave me the change, but he complained that I called the restaurant for "just 50 cents" and told me that I was obligated to give him a 2€ tip,even tho on the just eat app it doesn't say that we have to leave a 2€ tip. This happened on 09-20 around 18:00 in the evening. I think the driver was very rude to me and didn't even apologise.