KFC bad service

Bought coffe as they don't sell tea. Coffe makes me to have headache due to caffeine. Discussed with the lady to have white coffe as it's more milk and less coffee. When I came out did mot notice had black coffee. Strong in caffeine.Still have in my car afraid of headache. Never will ho yjre for breakfast. Unprofessional conduct of staff while servicing. Chatting in a rude township manner in front of customers. Order number 213 toll 234234 vathiswa as reference