How to retrieve deleted voicemails?
how do I get my voicemail back will have deleted them as I really need them back
[Re-Titled by Moderator]
If they were stored on your phone (with my plan I must dial into voice mail, so they are not), then they will be included in a backup if you have one made after the voicemail was left.
If you don't have a backup, then there is no way to recover them.
Sorry.