If they do my taxes wrong, do they refund the fee I paid to have them done?

When they did my state taxes, somehow they listed my tax amount they took from my checks as $350 more than it actually was, so my refund was less. Plus they were delayed because only 2 of my 3 W-2's was sent. Filed 3/19 and just got them today. I paid so I would get them back sooner. I paid $49 to have them done. Shouldn't I get a refund since they did them wrong?