IRS letter requesting completed form 8962 and copy of 1095-A. When I add the 1095-A info my refund increased. What do I do now?

The letter I received asks for me to just send a completed 8962 form and copy of 1095-A but after entering this info into my 2017 TurboTax return (following the steps found on the TurboTax site) my refund increased.  Do I need to send a new (amended) return to IRS?