Given the wrong realms server

Try support:

Renew an Expired Minecraft: Bedrock Edition Realms Subscription

https://help.minecraft.net/hc/en-us/request/new?ticket_form_id=360001225811

This issue is a billing/subscription problem that requires direct support from Microsoft, because account-specific changes (like correcting the wrong Realm renewal and restoring the old world) cannot be made through forums or self-service alone.

The appropriate next step is to contact Microsoft Support so the billing and subscription team can:

• Review the recent purchase that created a new Realm instead of renewing the old one.
• Verify the transaction against the Microsoft account and payment method.
• Correct the subscription (for example, cancel/refund the unintended new Realm and help restore/renew the original one if possible).

To contact support for billing/subscription issues:

1. Go to the Microsoft support site and use the Get Help / Contact Support flow.
2. Choose the category related to Microsoft 365 & Office or billing/subscriptions (as applicable in your region), then select a billing or “manage my subscription” topic.
3. Use chat or request a call so an agent can access the account securely and adjust the charges/subscriptions.

For disputes about incorrect or unintended charges, support may also review eligibility for a refund according to Microsoft’s subscription refund policies.

References:

• Pay for a past-due Microsoft subscription
• Problems renewing a Microsoft 365 subscription
• Change your country or region in Microsoft Store
• Can I speak to someone? -- Billing issues - Microsoft Q&A
• Retroactive billing update inflated 20-day charges from ~$210 to $1,683 CAD without prior notification - Microsoft Q&A
• Have been billed multiple times on multiple charge cards for renewal - Microsoft Q&A
• Fraud Charges - Microsoft Q&A
• How do I get refund for an accidental subscription purchase? - Microsoft Q&A