I grew up in South Africa but watched and absorbed a lot of American and British English from television. As a result whenever I speak English to locals they'll

I grew up in South Africa but watched and absorbed a lot of American and British English from television. As a result whenever I speak English to locals they'll ask me where I'm from. They usually explain and say that I still definitely sound as if I'm local, but they can't place exactly where from and/or why I sound wrong. My best guess is that the different influences randomizes some overlaps in words, tonality etc. Either way I don't think its bad and it's usually a good conversation starter.