Delivery man with attitude

So i got a call from the delivery guy to inform me that my order is downstairs, i went out to go collect only to find that he wasn't even there, i tried to call him ( he didn't pick up on the 1st attempt and on the 2nd attempt he picked and said he is outside, he kept shouting at me and dropped the call ) i calmly went out, mr attitude did not even greet he just gave me my delivery and asked if i have R4 with me, i rep**** that i do not and he just walked away... for a sec i stood there still tryna figured out why did he give me such attitude.

the attitude that he gave me is unacceptable, i hope next time my food will not be delivered by him!!!! ( delivery order #7)