LTD account migration

I have a customer who purchased LTD 3K tasks. But he won't use Pabbly anymore!
He wants to give me his access to Pabbly. How do I add it to my account?

They don't allow email change on Lifetime Deal accounts, it is mentioned on their Deal page as well -

Link to the FAQs- https://www.pabbly.com/connect-onetime/ utm_source=pabbly_connect_mainpage&utm_medium=hellobar&utm_campaign=pcot#:~:text=No%2C%20you%20cannot%20update%20or%20change%20the%20account%20email%20address.%20Please%20go%20through%20the%20terms%20and%20conditions%20for%20more%20information.

They don't allow email change on Lifetime Deal accounts, it is mentioned on their Deal page as well -

Link to the FAQs- https://www.pabbly.com/connect-onetime/?utm_source=pabbly_connect_mainpage&utm_medium=hellobar&utm_campaign=pcot#:~:text=No, you cannot update or change the account email address. Please go through the terms and conditions for more information.