To restore your Coinosh wallet using your seed phrase, follow these steps:
Install the Coinosh app on your device.
Open the app and select 'Restore Wallet' or 'Import Wallet'.
Enter your 12-word seed phrase in the order it was given to you when you first set up your wallet. Make sure to enter it exactly as it is, with each word separated by a space. In some cases, some wallets may also require you to provide a passphrase in addition to your seed phrase.
Once you've entered your seed phrase (and passphrase if required) correctly, your wallet should be restored, and you should be able to access your funds.
Always refer to the official Coinosh support resources for the most accurate information.