Can’t agree with this enough! This is not exactly what you’re talking about, but similar: I (in US) work with people all over the world, and I’ve found that folks not from my home country are more likely to call me by an abbreviated version of my name instead of the name I introduced myself as. Like if I said, “Hi, my name is Michael.” They will almost always call me “Mike.” Annoys the crap out of me. Because of this, I try to make it a point to ask if I’m not sure how to properly pronounce a person’s name.