▁wrote , ▁" If ▁the ▁In ternal ▁Re venue ▁Service ▁or ▁the ▁U . S . ▁Tre as ury ▁Department ▁were ▁to ▁object ▁to ▁amounts ▁we ▁have ▁claimed ▁as ▁too ▁high ▁of ▁a ▁fair ▁market ▁value ▁on ▁such ▁systems , ▁it ▁could ▁have ▁a ▁material ▁ad verse ▁effect ▁on ▁our ▁business , ▁financial ▁condition ▁and ▁prospect s ." ▁The ▁firm ▁stated , ▁however , ▁that ▁its ▁values ▁were ▁correct ▁and ▁comp lied ▁with ▁the ▁Tre as ury ▁Department ▁gu idel ines . ▁If ▁the ▁Tre as ury ▁Department ▁or ▁I RS ▁disag rees , ▁Sol ar City ▁and ▁other ▁fir ms ▁could ▁be ▁forced ▁to ▁re im bur se ▁institutions ▁that ▁purchase ▁their ▁tax ▁cred its ▁as ▁invest ments . ▁ ▁Sol ar City ▁received ▁roughly ▁$ 5 0 1 . 2 ▁million ▁in ▁cred its ▁up ▁until ▁December ▁ 3 1 , ▁ 2 0 1 5 . ▁In ▁Sol ar City ' s ▁ 2 0 1 5 ▁annual ▁report , ▁a ▁note ▁was ▁made ▁stating ▁that ▁if ▁the ▁government ▁determ ines ▁mis re present ations ▁were ▁made , ▁" the ▁Department ▁of ▁Justice ▁could ▁bring ▁a ▁civil ▁action ▁to ▁recover ▁amounts ▁it ▁bel ieves ▁were ▁impro per ly ▁paid ▁to ▁us ". ▁ ▁Customer ▁lit ig ation ▁Since ▁ 2 0 0 6 , ▁Sol ar City ▁has ▁lower ed ▁the ▁minimum ▁F IC O ▁score ▁required ▁for ▁customers ▁to ▁get ▁the ▁le asing ▁de als . ▁It ▁uses ▁the ▁score ▁of ▁ 6 5 0 ▁( a ▁" f