Sadly, that's very unfortunate
Private keys that are lost are generally not recoverable by Slope Finance.
The slope wallet is a non-custodial, decentralized wallet, meaning no one can access your wallet without your private key.
However, here are some tips on how you may still be able to recover your wallet yourself: Did you possibly log into your wallet using a secondary means such as the Google Browser Extension? If so, you can export the private key from there.
If we can be of any assistance, please let us know.
DO NOT share your Secret Recovery Phrase with anyone!!! If someone has access to your secret phrase, they will have access to your wallet.