I had already a lot of trouble with the Play Store country change in Canada. Now I'm living for a while in Singapore and I have the same trouble again.
In Canada/USA, I was not able to download the online banking app of my bank RBC and the service app of my phone carrier Virgin because I couldn't change my country in the Play Store. Now I have the same trouble in Singapore. Bank accounts here are not easy to get (a lot of paperwork) and will cost money. That totally blocks me from downloading free service apps.
I only have one bank account in Germany for my credit card and all payments and I want to keep it like that. I don't want to pay for other bank accounts, credit cards, or want to manage different bank accounts in many countries and currencies. I don't even want to talk about the hustle with the tax office. That was already enough with the one Canadian bank account.
Is there another way to change the Play Store country than to open a bank account with a credit card in every country you're staying in?