mail pp hưỡng dẫn mình thế này mà tìm mãi ko ra
To refund your buyers:
1. Log in to your PayPal account.
2. Click "Contact Us" at the bottom of any page.
3. Click "Contact Customer Service."
4. Under "Choose a Topic," select "Sending/Receiving Money."
5. Under "Choose a Subtopic," select "Refund/Cancel a Payment."
6. Click "Continue" and follow the instructions to refund payments.
To refund your buyers:
1. Log in to your PayPal account.
2. Click "Contact Us" at the bottom of any page.
3. Click "Contact Customer Service."
4. Under "Choose a Topic," select "Sending/Receiving Money."
5. Under "Choose a Subtopic," select "Refund/Cancel a Payment."
6. Click "Continue" and follow the instructions to refund payments.