Welcome to the forum. :hi:
Please note that I have changed your thread title. Titles should include some/all of the words/phrases you are asking us about.
As GoesStation said, your second sentence was grammatically incorrect. I would write "Please tell me if that is correct" because:
1. "pls" is not a word. Use "please".
2. In this context, "tell" is a transitive verb so you need an object. In this case, you need "me".
3. "corrct" is a spelling mistake. It's "correct".