1095-A with APTC for month I was not covered

I had MassHealth from June through October (for which I paid premiums).  I moved to Florida at the end of October and cancelled MassHealth.  I only paid my premiums through October.  My 1095-A shows an amount in Block C for the month of November.  I questioned MassHealth on this and all they said was that they paid the premium and to consult my tax advisor (I don't have one - I use TurboTax).  The November amount had changed my refund amount quite a bit.  Am I stuck with their mistake now?