Hi Eko_taas_taas,
Thank you for reaching Microsoft Community.
Please contact support through our Global Customer Service phone numbers (microsoft.com). You may also contact support through the Contact Us - Microsoft Support page but use these details:
1: Select Get support
2: On Describe your issue space, type Surface warranty adjustment then click Get Help
3: Under Need more help, select these options on the drop downs:
(Note: We're selecting Technical support under Category to get the options we need.)
4: Click on Confirm then these options should appear:
5: You may select Chat with support agent or Call me
Hope this helps.