It sounds like you may be dealing with a scam. Here are some red flags to consider: 1. **Request for Payment**: Asking you to pay a "certificate form fee" after a sale is not a standard practice with PayPal or any legitimate payment service. 2. **Suspicious Email Address**: The email address you mentioned, paypalonlineservice668@..., does not appear to be an official PayPal email. Legitimate PayPal emails typically come from addresses ending in "@paypal.com". 3. **Unusual Request**: PayPal does not require sellers to pay additional fees for transactions beyond their standard fees. Any request for additional payments like this is likely an attempt to scam you. 4. **Verify the Transaction**: Log in to your PayPal account directly through their official website or app (not through links in emails) to check the status of the transaction. Ensure the funds are legitimately in your account. 5. **Contact PayPal**: If you suspect fraud or have questions about a transaction, contact PayPal's customer service directly using official contact information found on their website. Forward suspicious emails to their phishing department. To summarize, be cautious of requests for additional payments after a sale and verify any unusual requests through legitimate channels before taking action.
