Bank of America discount

Im very disappointed with the customer support and the discount policies that turbotax had given. I am new with turbotax but i have been a bank of america customer for about 12yrs. I filed my return on the 28th of january and paid $125 for the extra services even though i am a simple w-2 filer i just wanted to be sure i got as much as i could being a single mother filing head of household. I assume you know how much each dollar means to me. So today the 5th of February i recieved a coupon on my bank statement for $15 off if i file with turbotax. So i contacted turbotax support and the girl on the phone had no compassion and very coldly let me know the discount should have been brought up before i filed. And I assure you there was no where they asked if i was a bank of america customer and i chose the direct deposit option to receive my refund and turbotax couldnt give me the discount then once knowing i was a customer of their affiliate? Very disappointed I know its only $15 but after paying $125 instead of just doing the free filing I would have really appreciated that discount. I most likely will never use turbotax again just for the poor customer relations or lack there of.