I unstaked my DIO but they haven't arrived into my wallet

After you unstake your DIO and approve the transaction, you have to wait until the unstake period has finished, which can be from 1 day up to 30 days, depending on the pool you staked in.

After the unstake period is over, the option to withdraw DIO will appear, and you can return your DIO to your wallet.

If you have any issues, check to make sure that you have enough SOL in your wallet to pay for the transaction. You should have at least a minimum of 0.005 SOL in your wallet.

Here is a video tutorial on staking and unstaking.