So I’ll show you below the result of my quest to delete my MagicJack account:
1 Account can be deleted on request by calling them on 1-844-866-2442 (inside U.S.) or 1-561-594-9925 (outside U.S.) and choosing option #3
Or at least, that’s the clear answer I received from their customer care team when I asked the Privacy team how to delete my account.
2 To be sure, I double checked with the support team on live chat
and they confirmed me that if someone wants to remove his/her account, he/she will need to call the customer care team (and so there’s NO online removal option)
They might be asking you on the phone why you want to remove the account (e.g. because you’re simply not using it anymore) and run an identity check on you. After that, they will close the account for you.
Source (and thanks to): Customer care team of MagicJack