I live on the top floor of a large block and have mostly been happy here for 8 years. I had lovely neighbours until a year ago when a young couple moved in next door.
The man smokes cannabis and the smell is so bad I could smell it in my flat, indeed other residents could smell it throughout the block. I knocked on his door and told him it was a problem. He smiled and apologised - and carried right on doing it.
So I reported him to the management company. The company told the landlord, who informed them that it was supposed to be a no-smoking flat.
It stopped for a while but it has started again, however it is not so obvious and therefore not such a problem as before. They have got better at disguising it. At least they are mostly quiet.
I wish they would move but then you have to wonder, the next occupants might be worse.
You’re the receptionist. What would you have done?

