Payment issue

[#1]

I am working with a freelancer. She had raised an invoice of 200$ through paypal which we paid, but it also shows that additional payment of $200 was made through Upwork as well. When asked, freelancer said she did not receive any payment through upwork. Is it possible to confirm if the payment was made through Upwork or not?

[#2]

It's strictly against the rules for a freelancer to invoice you directly via PayPal. Was this an hourly contract, or fixed price? If it was fixed price, you should have put the money into the escrow account and then released it when the project was finished; if it was hourly, you would have been charged automatically when the freelancer logged her hours. She should not have sent you a PayPal invoice, and you should never use outside payment methods with Upwork freelancers, because then Upwork won't be able to help you if you get scammed or the freelancer doesn't deliver the work (in addition, both of you could have your accounts suspended). I think that you should contact support about this.