hi druid, have you done anything else with your phone after you accidentally deleted the text messages? Have you sent or received any new text messages?

According to a couple of deleted SMS retrieval guides I found online, it's important to make sure that the memory of the phone doesn't get re-written with new data, because otherwise the deleted stuff which is still present in the phone's memory will get obliterated. You can check out the detailed guides for recovering deleted text messages via either one of the following links:

1. http://www.mytechupdate.com/how-to/how-to-recover-deleted-sms-text-messages-from-android-smartphone/

2. http://www.androidpit.com/how-to-recover-deleted-text-messages

I hope these help you in recovering your important messages!