Deductions & credits

Several possible reasons:

 

1.  They are idiots with terrible programmers (Most likely reason).

2.  They just don't care about us or about providing good customer service.  All they care about is people paying for their useless software.

3.  The owners are Republicans and don't want us electric car owners to get the tax credit we deserve.  As you know, all Republicans hate electric cars and want to do away with the remaining tax credits.  If they could have their way, we would still be burning coal for all energy needs instead of using natural gas, solar, and wind; and every American would be driving a gas-guzzling Ford F-150 truck made in America instead of fuel-efficient hybrid, plug-in hybrid, or electric cars.