Refunds, Instagram promotions

[Armend1]

Hi, I have been working with a client since October, I own a 1m Instagram Network and our deal was me to make promotions in return for payments. Now after 3 months and after we have successfully finished our job. The client asked for refunds of $900 claiming with notes that we did not do the promotions, but I still have proof all posts which has been posted for them. Help me out what can I do here before paypal actually decides to give all the money back to the client. Thank you very much.

[kernowlass]

@Armend1

Sadly there is no paypal seller protection for virtual or digital content so if he wins then you would lose out.