Is there a way to retrieve the edit link if the email with it was removed by accident?

if some looses or deletes the email with edit  link, how can he request for a new one? do u have a "i lost my form responses, please resend" form?

There is no such form, since something like that could be abused.

What is the usual setup is to send yourself the email with the same link (if you think that you might need it) and then if they happen to contact you about the same, you can send them the same.

Another option (and this depends on your own system that you are using), is to store the edit link (submission ID) so that you can show it to them after logging in.

(if you have such approach, it would be possible to have username and password on your side, and form on JotForm without the same).

Hope this helps.