Deductions & credits

There was one month where I lived in MA , but still worked in CT.  I had to manually input these figures on the interview screens under getting a credit from MA, since I paid state income tax to CT on that month's income. I tried a "live interview" but the representative that I last spoke with, had NO idea what I was asking or how to resolve my issue, even with the return right in front of her.  She wanted to turn my call over to a CPA for an additional charge! (had a previous call with a turbotax CPA and there was no charge).  Between the turbotax program and 2 state filings, along with e-files, I spent $200.  Cheaper to have taxes done by a live person. I am just asking for some simple help, on explaining the MA Schedule OJC form.