I sold a domain for about $400 through outbound and I've already transferred the domain to their account. I sent a PayPal invoice but he said " I am having an issue with making a credit card payment through PayPal. It is requiring me to setup and account and that isn’t something we wish to do nor am I authorized to do so. Please provide me with a different PayPal link that doesn’t require me to create an account.". So what other payment options do I have?