[Riminovz]

the agent replied: "We've been able to locate your order thanks to Amz customer service and we have found that your payment has been returned in full"

Ask the rep to name the payment system that the refund was generated Into.

Also ask him/her to read out the last few digits of the account/credit card number (for security reasons, they cannot see everything). No doubt It'll conclude they made the whole thing up.

What's the point of asking that besides getting a laugh off of it? I know they made the whole thing up to get me off their backs.

it is most likely illegal to lie about refunding a customer so if they get caught in a lie youll have a better chance at a refund