Trouble Restoring Deleted Messages from iCloud Backup

Hi,

I accidentally deleted a whole thread of text messages on Wednesday, that same night I also accidentally restored from a backup that was a few years old - although that backup somehow synced some things to my phone from before I restored it (but not any of my settings, texts, etc. ) SO, I found out that I had a backup from Tuesday (before I deleted the texts on Wednesday) and I restored from that iCloud backup. I have been able to restore my phone to how it was on Tuesday, but the deleted texts are still not being shown or downloaded. It is my understanding that, even though I deleted the texts from my phone on Wednesday, the backup from Tuesday should have restored the texts that got deleted since it was a backup from before that happened. Any help or advice is appreciated!

-Ava