How to disable "Exit" button from the Signing Ceremony Thank you Dialog Box

Hi Team, Greetings for the day. I'm working on Customizing the Branding for the Thank you Dialog Box Is there a way to completely remove the Exit button functionality (I'm aware about the withHandOverLink and I used it, but now I need to remove the Exit button itself). Kindly let me know if this can be removed through SDK (I wasn't able to see any functions to do this) / if this is possible if I get in touch with the OneSpanSign support team. Another issue is I don't see the close button when I use Mobile phone to sign the form, the thank you dialog box appears and has the message "If you wish to review your documents now, click on "Close" below" but the close button is unavailable and I just see Exit button. Please find the relevant images attached. Best Regards, Logan