Hadron, thanks your reply. As an example of my problem, ALL of my husband's messages BEFORE 21 May 2022, have disappeared. This would be a few years worth. It is the same for messages from other contacts, 2 or 3 I have found so far. There is no way I have deleted bulk messages from some years worth, in one go, let alone individually. The other deleted contact's messages are all gone from before a similar date, ie 21 May, although one is gone from early March this year. I've had this phone for a few years now and brought all info from my old samsung when this new phone came. No problem happened then. I am now waiting for 'options' from Head Office after going through live chat several times, VOC help a couple of times and then last Friday a 'Case manager' who said they would pass the issue to Head Office. I feel I will not hear a thing and have to chase this up again. Not super technical minded, but I do know I've not clicked any setting such as delete all messages over 1000, and if this IS the problem, why can't Samsung work this out? It 'seemed' to occur about the time of the last update to the phone, which I always do when its notified. I'm really quite distressed about this now, and feel as though I will never get those messages back. Apart from using husband's phone, and other contact's phone, to forward back to me those lost messasges - they come in as of todays date, not chronologically. I should also say that I have seen somewhere in the phone - and now can't find it again!! - that there is 2 thousand something messages still listed by date, just not the texts. I will have another go at Samsung today and see if there is any good news.