What do I do if a dog gets returned to the rescue after being adopted with a Fi collar? February 01, 2021 23:46 Updated Follow We approach this on a case-by-case basis. Please email rescuesupport@tryfi.com so we can further assist. Related articles I can no longer see my foster in the Fi app. Transferring a Collar to a Foster Parent Fi Rescues: Introduction, Program Overview, Ordering Collars