Months after a series of KXAN investigations into TxTag helped drive a new state law, complaints about the Texas toll system persist. More than two dozen TxTag customers reached out to KXAN — the majority after a new state law went into effect on Sept. 1 aimed at stopping surprise toll bills — still complaining about problems with auto pay, billing and sky-high surprise statements that, in one case, totaled $809. Those concerns led KXAN to investigate whether the new law is working and learn one