We currently have limited customer service staffing due to Coronavirus (COVID-19) safety precautions. We encourage you to find quick answers to your questions by searching the community forum, visiting our Help Center, or messaging us (message response times will be delayed). Thank you for your patience.
For small businesses who would like to apply for the Paycheck Protection Program, visit our application page. Our agents cannot take applications over the phone or provide you with the status of your loan. Join the discussion in the Community here.
New to the community? Welcome! Please read our Community Rules and Guidelines
Not surprised PayPal didn't take the coupon into account, they'll just ask about the original total. Nor does eBay, I've noticed it'll say that the original total but you'll see the coupon deducted in your PayPal receipt/transaction details.
You'll have to call customer service to explain the situation and how they can reverse the transaction or how to proceed and pay the seller again, maybe give you a 10% coupon code to pay the seller again via PayPal.
To contact customer service:
Log on, click HELP on top menu, scroll down to click CONTACT US, and then scroll down to click CALL US.
Or private messaging via social media:
Facebook (US): https://www.facebook.com/paypal
Twitter (US): @AskPayPal