My old usage data

I am trying to get a date that my family's satelite system stopped being used. We mistakenly took our system down thinking our account had been terminated. Unfortunately we were on autopay and we did not discover the mistake until much later. If we could get the date when the system went out of use then it would help with our open billing question. Given the amount of data that DTV collects I assume that there is a way to figure this out. Any ideas?