Issue with FC Points Purchase - Incorrect Total Amount

Dear [Support Team/Game Support],

I hope this email finds you well. I am writing to seek assistance regarding an issue I encountered while attempting to purchase FC Points.

When I tried to purchase 5900 FC Points, the displayed price was $49.99. However, after recharging my account with $49.99, I was unable to complete the purchase because the total amount shown at checkout was $54.43. I am confused as to why the total amount differs from the advertised price of $49.99.

Could you kindly clarify why this discrepancy exists and guide me on how to resolve this issue? I would greatly appreciate your help in ensuring that I can complete the purchase at the correct price.

Thank you for your time and assistance. I look forward to your prompt response.