Hi Melanie_Mclean,
Thanks for reaching out. I'm sorry to hear that there is some sort of miscommunication between eBay and PayPal. Do you have funds being held in your PayPal account? If so, perhaps eBay does not have the knowledge that some funds are on hold. PayPal and eBay are separate companies and the information in your PayPal account wouldn't be available to them.
The funds in your PayPal account that show as an available balance are what you can use to make a payment. You may be able to split the payment between two different payment methods though!
Here is more information on that process: .https://www.paypal-community.com/t5/About-Payments-Archive/Using-Paypal-Balance-amp-Credit-Card-for-Single-Purchase/td-p/671918
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