Duke power bill due at the end of the month instead of the start of next month

Idk if everyone has different billing dates but does anyone else usually get billed during the first week of the month (based on the prior months usage) and usually have a due date for payment during the first week of the upcoming month? If so, did yours also determine a due date of March 31st this month for some reason? I just received our bill as usual on the 6th, but instead of a due date of April 3rd as expected, it's due March 31st. Meaning we'll be charged twice this month. I would assume the schedule will fix itself and resume as normal, meaning we get the next bill on April 6th and it's due May 3rd so we would end up not having any payment in April. The issue is, last months bill was massive as most of you know. Luckily this coming payment is about $140 less, but having two payments in the same month is really inconvenient and I don't see a reason for it.