Apple Stores - Carousel of Idiots

In reading the reviews of Apple iStores, I note that Apple has NEVER rep****. Not contesting these comments indicates to me that all are 100%. That said, I have an Apple 8 iPhone, and am American - bringing my phone with me to South Africa. I purchased it at Best Buy in NYC. After 4 years, I needed a new battery. W ent to Tyger Valley store to get an on site replacement, explaining that I purchased the phone in the USA. The consultant there said they do not perform at that store, I must go to Canal Walk, and he booked me an appointment there and then for the next morning. I had told the consults at both stores that I attempted a battery change in Turkey, and that they would not do anything if the phone was not purchased in Turkey. They agreed it was "terrible". When I got to Canal Walk, after banging in my phone details, the consultant informed me they WOULD NOT HELP ME. At least Turkey, they told me up front . The consultants with their collective stupidity sent me all over the province then dropped the bomb. What the "F" does one do with his iPhone in South Africa - this is customer disservice and insult at its best (or worst). And they do it with a smile, adding insult to injury