Heres the chords for Told you so (or Hate to say i told you so).
Its a really easy song, and Im pretty sure i got it right.  

E------------------------]
B------------------------]
G---7--5--10-------------]
D---7--5--10--8----------]   
A---5--3--8---8----------]
E-------------6----------]

Thats all! Just repeat those chords over and over.
Listen for the strumming patterns. 

Super easy song, have fun!