Can someone guide me how to recover my wallet address, I have the backup from my previous wallet.

can anyone teach me how to stake the coins from the gui wallet?

Hello,
I have purchased about 3500 bitradio coins from Cryptodao exchange site in the same day the coin was listed in Cryptopia, I made a request to withdraw them but Cryptodao didn't confirm the withdrawal and support does not answer me, has anyone here met the same case?
Thank you for your help