It has been released once before, can it be that it has to be done again?

For babies, children and adults, because of the fast wound healing of the mucous membranes in the mouth area, re-treatment may be necessary. This is only if the healed tissue is too tight again.

It may also be possible that the previous practitioner has not removed enough of the tongue tie and or the lip tie. Also due to compensation behaviour, no or insufficient aftercare it may be that some degree of regrowth has occurred.