Yes. Some merchants compare the details on your wallet account with the information registered on their website. If something does not match, the payment may be declined to protect your accounts at both websites.
The merchant may check details such as your name, date of birth, country, postcode, and email address. If your payment is declined because of a mismatch, check your details in your Skrill account and on the merchant’s website. 

If your Skrill wallet details need a small update, go to Settings/Profile > Personal details. This option may be available via a web browser only. For major changes, such as your name or date of birth, you may need to contact our Help Team. If your wallet details are already correct, update your information with the merchant and try again.