Account hacked

I’ve had an uphold account for about 5 years, never had problems logging in until a couple weeks ago my password (that I know for a fact is right) didn’t work anymore. I did everything to try and change the password but at the end of changing it, it tells me to give the code from my authentication app. I never had that app but just to try it I downloaded it to see if it would work. It did not. From what I’ve read that usually means the account is hacked. Is there anything I can do? Uphold support has never gotten back to me.