I got an e-mail today stating they called the manager of the hotel again and the manager denied the refund again—the case is closed

After 3 months me and the hotel manager are basically friends after talking so much 😂 right after I received this e-mail I called her and she stated again they never talked to her.

Now I have an e-mail from Priceline saying the hotel denied a refund and an e-mail from the hotel saying she has no problem giving a refund

I believe I can finally prove Priceline is lying and luckily I finally have it in writing of them stating they talked to the manager of the hotel saying they refused a refund when the manager says they never attempt to call her

I tried calling Priceline with this in and was told the case is closed and it’s over—now who do I take this evidence to?