Adding contacts back in who marked email previously as spam (they changed their mind!)

Question:
I have a few subscribers across various Wix sites for myself and clients who marked Wix marketing email spam, but then either joined up as a paid subscriber or entered a giveaway or simply asked to receive email again, yet Wix won’t let me email them. Am I missing a way to “fix” a contact who had a change of heart?

Product:
Wix Marketing Email

What are you trying to achieve:
I want to reach contacts who NO longer view my email as spam…

What have you already tried:
I’ve searched help - couldn’t find an answer,

Additional information:
I think I’ve said it all. : )