Best answer by Nancy_Boost
It should be added within 6 weeks of receiving your confirmation email. Please be aware the Ofgem deadline for making payments is the end of March 2019, but we're aiming to make them sooner than this.
If your application is currently in the process of being checked, this might take longer. We have to "validate" 5 to 10% of applications by asking for supporting documents from the DWP. This process can take 6 to 8 weeks too, after which you'll be sent information about the outcome.
Hope this helps,