Debonairs Pizza review: pizza and delivery service and fee

Debonairs Lenasia south, I normally order pizza from them, afters sometime they told me they don't deliver after 17:00, since that's their cut off time. They refused to take my order and told me i should have called a bit earlier.Then I decided to order again and this time before 17:00. I was told that delivery was now R15 and I thought delivery was free. Is this true or ethically. The store seem to have lot of issues.