I'm using woo commerce with paypal.  On some products they can only be purchased from <removed> and so I've set up the listing as an affiliate - so far so good as it removes the add to cart and replaces it with a 'buy from <removed>' button.

The problem is the paypal button is still there and when I click on it, I get an error message saying

PayPal error (10525): An error (10525) occurred while processing your PayPal payment. Please contact the store owner for assistance.

How to I turn off paypal for these products?  I'm not too sure if this is a paypal or woocommerce error but since the buttons etc are defined in paypal, I'm assuming I have to do something on paypal's side as I can't find any way to turn it off in the wordpress dashboard.