No. Bitwala will never be able to access your wallet. Only the creator of the wallet who holds the keys has access to it.
Users are responsible for the security of their password, the main key, and the backup key. If you have forgotten or lost your password, your backup key and your main key, we are unable to help you regain access to your wallet. It is very important to store the written keys as safely as possible. During the wallet creation process, we remind you to do so.
Bitwala will never ask users to share their backup key, main key or wallet password. If you are ever asked to share such sensitive information, and please inform immediately us at firstname.lastname@example.org.