Full disclosure, I'm probably being U!
Flat flooded due to issue I've been raising with management company/LL for the past year. I've been dealing with all the admin surrounding that, including cleaning, drying out, trying to sort out all my damaged possessions etc.
One thing I did was hire a dehumifider as that can help dry a flooded property. I hired it for a week (LL paid). My receipt states a weeks hire and the very long email with instructions states I need to organise collection. After around 5 days the flat was pretty much ok, though smelly, so I turned the dehumidifer off to save on electricity.
Today I suddenly realised it was still here, it had been 10 days, and chased up company who were supposed to collect. They say I need to pay for the extra days. No idea if LL will pay for my mistake.
Now I fully appreciate the company can't hire it out to someone else while I have it, but it seems like poor customer service not to send out any kind of reminder or check in? I'm guessing they make a lot of money by people forgetting to organise it themselves.