Paypal phones are mostly non operational since covid but sometimes you get lucky. (use the guest option if you can't log in). If there is one available it will show when you click help / contact bottom left of Paypal pages for options available in your country. Live chat is randomly available. You can send them a message. Or have you considered contacting Customer Service via Facebook or Twitter? You can send them a personal message from their facebook or twitter pages. It's: https://www.facebook.com/PayPal and @AskPayPal for Twitter.
if you were hacked......
Click on the transaction in your paypal account and use the 'report a problem' link at the bottom to report it as unauthorised if that is what it was.
An unauthorised transaction means that your Paypal account was hacked and used without your consent. If Paypal check IP addresses / devices etc and find that it was hacked then yes you should receive your refund.
I hope you changed your password and security questions? I hope you ran a virus scan on your computer? I would also be telling my card issuers and bank accounts company that the account was hacked so that they can keep an eye on your account OR remove the financial info involved until things are sorted.
Advice is voluntary. Kudos / Solution appreciated.