Ask what the previous attendance included, what was tested or repaired and whether any access limitation remained. If a specific item was deferred, provide that record. An invoice describing attendance alone may not answer those questions, so request the available work description rather than treating payment as proof that the complete electric fence installation was assessed.
For an electric fence compliance certificate, provide the current findings and explain any alterations since the earlier certificate. A recurring fault may need investigation before the installation can be considered for certification. Where the equipment is shared, obtain the relevant management approval for further work and keep residents informed through the appropriate contact instead of issuing conflicting individual repair instructions.