Information from NB Government on $400 Seniors' forms (Apr. 1, 2020)

https://www2.gnb.ca/content/gnb/en/departments/finance/promo/seniors.html
Applications for the 2020 Low-income Seniors' Benefit will be available ONLINE starting Wednesday, April 1st. Due to the state of emergency announced on March 19th as a result of COVID-19, and to support physical distancing measures, eligible New Brunswickers are strongly encouraged to APPLY ONLINE ( get_form_here ). Applications forms will NOT be available at Service New Brunswick Centres (or at Village of Salisbury Office during the Office Closure), but individuals may apply ONLINE, or print the application themselves, complete it and mail it to: Finance and Treasury Board, Revenue Administration Division, PO Box 1900, Fredericton, N.B., E3B 5G4.
The application deadline is Dec. 31, 2020.