How do i contact lightlightstream customer service? LightStream Customer Service Phone Number (702) 486-3132, Email, Address. Loans and Mortgages.Where can i find my lightstream loan payoff statement? You have multiple payment options but first you need to locate the payoff statement from Lightstream's customer service reps: Call the Lightstream customer service phone number at 1-800-447-8994 and ask to be connected to the loan payoff department.Is lightstream a good company? LightStream’s BBB Rating is NR (Not Rated) LightStream is not rated by the Better Business Bureau. But its parent company, Truist, has an A+ rating. They do not have many customer reviews on Trustpilot, while scoring an average rating of 2.8 stars out of 5.How do i limit lightstreams sharing of information? LightStream customers, please go to Preferences in the customer service section of the LightStream web site to change your preferences to limit our sharing. If you are a new customer, we can begin sharing information 30 days from the date you receive this notice.