@ Gilly - Being from the UK I completely understand where you're coming from.
No English is not from Canada/U.S.A. And no, neither Washington nor Chicago are the capital of England.
Regarding the capitals, this is a little annoying for me. During the world cup I taught my students that there
were 3 capitals of South Africa, as you have mentioned. However, unsure of myself afterwards I spoke to
some South African friends who told me that officially there was only one. So I changed it.
On further review, I will now change it again.

I also understand how the picture of the continent Africa with the South African flag is misleading and will change it right away.
(Although with Brazil as a football and England as a pair of underwear, I wasn't striving for accuracy.)
However, I hope you understand that the rest of the PPT makes it very clear as to where South Africa is.
I will attach the edit to my first post. Thanks for your feedback.