Refund check was 155 dollars less

I just got a check from Green Dot Bank today. My state return was supposed to be 371 according to the IRS and TT. However when I opened the mail today is was a check of 216.22. 

 

I never authorized any amount of money to come off my taxes. I don't owe child support, I file my taxes every year. 

 

Why did they do this?