There's no difference when updating payment details between just updating, or upgrading/renewing a subscription. If you're generally able to browse sites hosted in the US, speed shouldn't really be a problem, but depending on your payment method you may be required to confirm your payment with your bank or payment provider. In some cases these require a pop-up or redirect that your browser needs to allow. In your case, the indication is that the payment request was cancelled (but that might just mean it was not confirmed within the required time).
Upgrade Storage
If you're generally able to browse sites hosted in the US, speed shouldn't really be a problem, but depending on your payment method you may be required to confirm your payment with your bank or payment provider. In some cases these require a pop-up or redirect that your browser needs to allow. In your case, the indication is that the payment request was cancelled (but that might just mean it was not confirmed within the required time).