Just to preface this by explaining that I have never had a lodger before and don't know anyone personally who has lodgers so I don't really know if I'm being mean or not.
The new lodger (I'll call her Jane) only moved in a couple of weeks ago and works away for part of the week doing a training course for now. She would be here all week when the course ends in a couple of weeks, if she passes and will be working shifts as a front line health worker. I thought she would be a good match because of the nature of her job and because she will be doing shifts. Also she came across as being quite sensible/quiet.
It all worked ok aside from a few minor things until the weekend. She left the house at some point in the evening and I was woken up in the early hours to a bit of a racket outside and banging. When I opened the front door she was outside, so drunk that she couldn't speak (despite loud drunken shouting conversation with her mates whilst climbing out a taxi), in pyjamas, and drunkenly swinging a carrier bag full of wine bottles around which was causing the banging and crashing.
She still had not surfaced from her room by 3.30pm the next day, presume still sleeping as I couldn't hear any moving around all day. I went out and got a breezy text from her an hour later along the lines of 'off to work, sorry if I woke you up on my way in last night'. I told her that I actually let her in, which she couldn't remember, and asked her where her keys were. She didn't know, 'think they might be at my friends' but didn't check until I pressed this, and realised then that she doesn't actually know where the keys are, she's lost them.
I got a locksmith out on Monday to change the locks, and she said she would transfer me the money the same day. Still no sign of the money, and she's left my message chasing it on unread. She's actually due back from her course at 2am, and I have no idea whether she plans to just knock on the door for me to let her in or thinks I'm going to leave a key outside for her (I'm not).
I really want to take the stance that I am not letting her back until she's paid the locksmith fee (I've obviously paid the locksmith myself). Would this be awful of me, or justified? Despite some gushing apologies by text on Sunday only when she could see I was a bit pissed off and strange comments about 'I don't drink really, this doesn't happen' (she absolutely does drink, she's had a bit of a drink every night she's been here and asked me several times although I've declined if I want a drink) she obviously isn't as bothered as she says as she's left me to foot the bill for the locks.