Purchase icloud storage for devices in different countries

Hi,

Just to relieve my system pressure. Was going to post a question. But I need to let out my grunts:

My experience with Apple is kinda written in blood. But for now I've got to live with it.

Well I'm a Globetrotter, so is my family. And Apple is not designed to have international support.

Accidental Damage: Don't buy that 'accidental damage' if you move around the globe. Isn't valid outside your region of purchase.

A good insurance or purchase through American Express is the secret to get a broken iPhone replaced.

AE replaced an broken iPhone and send me a replacement within 48 hours. Thats what I call service.

Purchase international models: Ask for it or double check what model you get. If you don't have an international model they (Apple Store) refuse to service it outside your region. Yes Apple and International Support is a joke. Only in the US the Apple Stores are great and understand we don't only stay, live and work in 1 country.

China service: Never, never service it in China. Mine got serviced (battery exchange) at an authorized service point for free.

Checked at the Apple Store in Shanghai, back home still had problems....Local Apple Store checked the phone....warranty voided.

6 months old iPhone slowly died in the month after. The suckers in China reinstalled something inside upside down and never registered it in the repair log.

Few months later back in China with the phone...No sir we didn't do it, we always register any repair.... Liars.

Microphone:

Now I've got an EU iPhone in China with the microphone very soft. Including 'Accidental Damage', Apple China refuse to support it. It was bought in Amsterdam. A firmware update fixed the problem partially thanks to US support.
But it's annoying my kid has to use a headset for six months until he's back home and get it serviced here.

And I don't want to buy him a Chinese iPhone, cause then he doesn't get service when he's back home.

Good, finally out of my system. And remember the US Apple employees have always been the positive exemption in the last 10 years or so.

So after the long story here comes my cross border question:

I want to extend the iCloud storage from Europe for my family.

Using different App-Stores was already a crime. Thanks again for the US support to help switching stores.

1 account is switched to the Chinese Appstore

1 account is switched to the US Appstore

Question:

Is it possible to pay in EU for iCloud accounts valid in China (RMB) and in the US (USD)

As in the end they will end up back in the EU.

What happens if you extend the storage in 1 country and then move to another country with a different currency and extend it again?