It looks like the team has reached out to you through this support ticket with Ticket # 25109793. You should be able to access it in your email inbox by looking for the email with the subject "Hi! Help with your card verification." Kindly check the email for more information on how you can verify your credit card.
I hope you are doing well. I need help to proceed my transaction for activate new milestones. I contact my bank agent just now but he said everything is fine from bank side and your MasterCard is activated for online transaction. I am in trouble because my MasterCard still showing error (We are unable to authorize your card. Please add another billing method or contact your issuing bank.) even I put my detail correctly.
I also activated new milestone yesterday night with this MasterCard but now this is not authorized for transaction. Please assist me to solve this issue. I hope you understand the situation. Furthermore, I have attached the screenshot for to see everything clear. I am waiting for your kind response.
Thank and regards,
**Edited for Community Guidelines**
Thank you for letting us look into this. We have escalated your concern to the appropriate team. One of our representatives will reach out to you shortly. Let us know if you need anything else.