Re: read the last name
I think this is the second time Ju has used "customer" officer. I'm not sure if the intended meaning is "customer service provider" (someone who helps customers) or "customs officer" (someone who works in Customs/Immigration.
If you mean "Customs" then I have nothing to add to Rover's post.
If you mean "customer service provider," then something like "Could you help me pronounce your name properly?" would generally be well received, as would something like "I'd like to pronounce your name your name correctly, but I'm having some trouble. How do you say it, please?"
Having said that, for a while my last name was pronounced with an "ee" sound but spelled in a way that some people said "eye." If they called me "Mrs. eye-sound" I didn't care. If they could tell me the status of my order, get me my refund, clarify my question, I didn't care if they called me "Mrs. ooo sound." Just take care of the problem.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.