A. 1. Log into your PayPal account and navigate to the 'Activity' section to review your recent transactions. Check for any discrepancies or errors in the transaction details. 2. If you find inaccuracies, gather any relevant documentation (like receipts or emails) that support your claim. 3. Go to the 'Help' section and select 'Resolution Center'. Here, you can report the issue and provide the necessary documentation. 4. Follow the prompts to submit your case for review. PayPal will investigate and may reverse the denial if they find your claim valid.
B. 1. Ensure that your account information is up to date, including your email address and linked bank accounts. 2. If you frequently experience payment denials, consider contacting your bank or card issuer to ensure there are no restrictions on your account that could be causing the issue.