Re: “… how to do this without risking the loss of the service …”
Best of luck and certainly DO be careful.
While we all recognise the complexities any online company faces collecting taxes across multiple jurisdictions … IMO that’s just the “cost of doing business.”
I’ve of late discovered several sizeable and recognizable online merchants “over-collecting” sales tax which they do NOT owe to any taxing authority.
They’ve all readily returned the monies once the error has been “pointed-out” to them; I’m confident that Apple will do the same … once you “drill down” to the right individual.