First, make sure that the way you want to pay is one of the ones that Pull&Bear accepts. Some choices may not be available in your country. If the billing information on your card doesn't match what you put on the site, you may have problems.
Another problem could be with the safety features on your card or account. If a foreign or online transaction seems odd, many banks mark it as possible fraud. This might be fixed by checking with your bank to make sure they aren't blocking the payment.
Lastly, make sure that you can use your card to buy things online and in other countries. If the issues don't go away, trying a different card or method of payment, like PayPal, might also help.
Remember, you're not alone in your experiences. Explore Xolvie to read about the challenges others have faced and share your story.