Hi, thanks for your reply
I did set up a paypal sandbox account but I never worked out how to use it. I also checked "enable paypal sandbox" in the WooCommerce settings under "paypal credit card" (which is the function I'm having issues with). Could that be it? What should I do to correct it
I have checked for typos and extra spaces in the API credentials and I@m sure it is not that
THanks for your help