Oh ! Thank you for your fast reply ! Then I have to find a way to buy it, as I don't have Visa card now...
I just had the phone in my hand at that moment You can pay with Bitcoin, yes it might not look easy but if you go through it step by step it is not that hard.
I will try the way mentionned in the forum : buying a prepayed VISA card in japan (combini), then pay with it through the VISA payment way.
This is new to me, although I never did any research about this topic since I can pay using both Credit Card and Crypto.