Received a telemarketer's call. Voice mail recorded not only 'Nelson' who was calling personally, but their white noise block also included other 'Nelsons' (including a female Nelson) attempting to sell a third party energy service program to lower electric bills. I just wish I caught the name of their 'firm'.
By experience, 3rd party anythings usually double (and sometimes triple) your cost before the end of the 'whatever length grace period' is up.
Be wary of these types of calls, they rarely save anyone any money.