Why are TxTag customers getting pay-by-mail bills?

When TxTags are working properly, CTRMA receives money from the tag account and no bill is sent to the customer. CTRMA sends out pay-by-mail bills when drivers don't have an electronic tag, their sticker isn't working or there isn't enough money in the account, officials said. Read More: https://www.kxan.com/investigations/w...