State tax filing

It was my state. I mean im expecting one thing and through TT, where my info is suppose to be checked and even look for extra tax breaks i may have missed. Right? So a final check of things even and every thing was in order.  Here i paid almost $300.00 for TT and their input and tax skills of checking over my numbered and verifying, right?so im expecting me $ value and recieved some different $  Amount .  I trusted in TT and relied on them to do their part for thats why i paid hat steep fee.  Now im missing over $100. Yet TT cant tell me why nor anyone else for that matter. No mail explaining why even. This is so frustrating. Now i have late fees on bills i was needing to pay with the $ thats missing. So frustrated right now.i dont know what to do next or where to even be gain. This is a nightmare that i thought i paid for, not to have. I dont owe court fees, now student loans, and i dont have children. Guess all i can do is let out a chuckle about this. Im lost for words.