Hi, I want to change my account from Germany to UK, As I charged already in my Germany account, now my question is should I charge again in UK, while changing my account?

You have to open a new blank QBO UK version and purchase it.

https://quickbooks.grsm.io/UK

Afaik, you can't ask for any refunds unless you've paid for your QBO EU account 12 months in advance.

Welcome to the QuickBooks Community, hekmat-nazari-ul. I'll be providing details on how to change a version of QuickBooks and how the billing works. Then, to ensure you can modify your account smoothly without any double charges.

When you sign-up for a different version of QuickBooks Online and want to change it to another country, you need to cancel the previous one before signing up for another. This is to avoid receiving double billing or charges, and each region has its own subscription. That being said, you will be charged again when you create a UK account.

To start with, you can click this article to see a step-by-step guide on how to cancel either the paid subscription or a 30-day trial service: Cancel your QuickBooks Online subscription.

Additionally, please know that your details from the QuickBooks Germany version won't be deleted automatically after cancellation. You can still access your account through the end of your billing period. Then, we'll keep your data for one year. This is to make sure of the availability of your file for future use.

Once done, you can now sign up for the QBO UK version using this link and you can still use the log-in credential you've utilized when creating the Germany version.

Here's how:

1. Go to the Prices menu.
2. Click the Free trial to Buy now & Save 75% radio button.
3. Click Choose plan button.
4. Follow the on-screen instructions to complete the process.

After that, you can open this to further guide you in effectively setting up your new account and managing your business using QBO: Help guide for QuickBooks Online. It contains topics about advanced accounting, banking, and payments to name a few.

Lastly, you may refer to this article to see different troubleshooting steps on what to do if you're unable to sign in to your account: Get help if you can't sign in to your account.

Please know that you're always welcome to comment below if you have other concerns or follow-up inquiries about managing your subscription in your QBO account. I'm just around to help, hekmat-nazari-ul. Have a good day!