I can imagine how upsetting it is to lose the entire chat history. MayI know what phone do you currently have? If you've created a backup you should be able to restore the messages from there. If not, then I'm afraid there may not be a way to retrieve the messages.
Hi @RogersZia Thank you for your response. And yes it is very upsetting to me! I was just trying to delete a drafted message I had written so not sure how I ended up deleting the entire history! Anyways to answer your question, I have a Samsung Galaxy S8. And in terms of the backup, I was going to do that right after it happened but for whatever reason my last backup was over a year ago so I decided not to as then I would lose this past year of messages with all other contacts and possibly a lot of other data as well...please let me know if you think of anything else! Thx!
unless you physically backed it up from your android i do not think its possible and probably not worth the time and effort to try. my text messages are often deleted as the messages app on the android gets very bulky in storage unless you frequently clean up your messages. text messages are really designed for short term messaging, if anything important i prefer to send it via email so i can back it up easily to the cloud