I am afraid there’s nothing you can do now. If there’s an email id to contact an endorsement team - I am not aware of it. Basically one is fully responsible for the information submitted and after it is submitted it is final. The only way to amend the information is to submit a new application; as I see it. I wish someone could prove me wrong.
Disclaimer: I don’t work for Tech Nation and I don’t represent Tech Nation. I am not a lawyer and this is not legal advice.