I emailed my letting agent, using the address officially given, just a couple hours shy of two working days ago, to inform them that I had no hot water. I followed up this morning with another email and they have still not yet contacted me, not even to say that they’re working on the issue. I don’t see any guide on exactly how quickly they should be responding—just that it must be in a timely manner. I don’t want to over-react, but this isn’t the first time they have abysmally failed to respond in what I feel like is a timely manner to issues. When does it become appropriate to escalate the issue to their corporate offices or another body?