Dominion Virginia Power Disconnect After 2 day lapse Richmond, Virginia

I am writing to report a serious problem with the payment plan structure of Dominion Power.  After a long year of job loss (me and 3 children), illnesses (1 child) and a paycut (husband), I struggled to maintain the amount charged for electrical service.  I finally was put on a payment plan once the amount due reached $1495!  My downpayment was $463 and every month I was to pay $234 plus whatever my bill was for that month.  On August 2 I paid the $463 thru their Bill Matrix division and noted on dom.com website that the amount was accepted.  Here we are 2 weeks later and my electricity has been disconnected without warning!

I called Dominion and they said because the payment was 2 days late, the agreement was broken and I had to come up with $1495 in order to restore my electricity!  No matter who I spoke with, I was told the same thing.  There are 9 people in my household (4 adults, 1 teenager, 4 children ranging in age from 2 months to 8 years old).  I explained to Dominion that I had a 4 children under my care and could not do without electricity.  All I got was a 'sorry miss, there is nothing we can do about that'! 

What I want to know is, if it was such an infraction to the rules, why did they wait 2 and a half weeks before alerting us to the disconnect or even why didn't they call to let me know that the payment was 2 days late????  Even more, I could understand it if I hadn't paid what they asked me to pay, but I did.......there has got to be some leeway on this payment plan when the elderly or small children are involved.  Everything is not written in stone.  I wish I knew who I could contact about the situation.