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Good afternoon, I will send you an online form then you can liaise with the Eu settlement scheme as this problem has been occurring with the phone contact.
Please see above link.
To be able change details you would not contact the EU Settlement scheme as they would only makes changes.
Using the above link I gave this would be another way to contact them.
It would be on correspondence for application.
Yes email here as it’s a technical issue your having.
It was a pleasure assisting you today. Kind