AIBU to expect payment when my sister's boyfriend used my concert ticket?

The ticket was going to be wasted. You most likely wouldn’t have sold a single ticket two days before the event. Unless you are on the poverty line, let it go.
I have often gave tickets away last minute as DS refused to participate on the day.

I would be happy to let my Sister and her boyfriend have a nice evening together seeing as you couldn't go. Having kids might mean they don't get the opportunity as often to do much together.
Family comes before money. Don't be so tight. Hopefully they had a lovely night.

Nope I would be delighted the ticket didn’t go to waste. No chance I’d be looking for payment in these circumstances.

No I wouldnt expect money. Unless you said "do you want to buy my ticket otherwise im selling it" i think most would assume you're offering for free as ticket going to waste anyway

If you wanted to sell the ticket you needed to have got your arse in gear and done it. Rather than waiting around for Sis1 to make up her mind and then doing nothing.

It sounds like you only found out the ticket was used after the event so you must have been resigned to not selling it. You admit the BF wasn't that interested so he probably only went because Sis2 asked him. If he'd had to pay he probably would have said er, no thanks.

It is good that it wasn't wasted. Keep a closer eye on your diary in future lol.

Why did you wait until 2 days before the concert to sort anything out? I would have said ages before that to let me know if anyone wanted to buy it from me otherwise I am going to sell it. That would have made it clear that you wanted money. It doesn't sound as though you would have got any money as you were still hanging onto it, also you weren't clear enough about it.

You could have listed it on twickets at short notice if you really wanted cash for it. YABU if you’d rather it went to waste then him going and having a nice time.

This- it was too late for you to sell it anyway, you didn’t try to sell it, so you’d have been down the money regardless.

No I wouldn’t expect payment for it as it was too late to sell it and he wouldn’t have bought it, as he wasn’t bothered about seeing them. Next time give a clear deadline that allows you time to sell the ticket.

I think if you were bothered about wanting the money, it was your responsibility earlier on to firm up arrangements for the ticket with a simple message “hi guys can you let me know by x if dn is going to the concert otherwise I will get the ticket sold” the boyfriend going because it was going to go to waste imo mean he has to pay.

i do think YABU op.
It was your ticket, if you wanted to sell it you should have been more proactive and pushed for clarification re your DN.
It sounds like he just tagged along to make up the numbers not because he really wanted to go and thought the ticket was free, you can’t charge him if he wasn’t made away prior to the concert

It's a bit late for you to start looking for payment. If he thought he had to pay and wouldn't have taken the ticket because of that you would still be out of pocket. You should have just sold it right at the outset.

It was going to waste so no payment. Seeing as you wanted payment whatever happened you should have sold it earlier. Then other could have bought if they wanted to go.

YABU. You should have made more of an effort to sell it if it was that important to you.

He only went because it would have gone to waste. He shouldn't pay. You should have followed up sooner and given a deadline of let me know if you want the ticket by x date or I'll be selling it.

I wouldn't have expected payment for the ticket for someone that stepped in last minute to use but I would have been clearer with my sister ages ago letting her know if she didn't want to buy it you would be reselling, seems like there was confusion on the ticket.

Not in those circumstances tbh. You double booked yourself and didn’t really make much effort to drive anything about your ticket. In your shoes I would have said ‘sorry, I can’t go, do either of you know anyone who would like to buy the ticket, if not, I will list on twickets to try and get the money back’.

What now? 😂

This 💯

No of course not and if you wanted money you should have explained that up front, the ticket was only used so it didn’t go to waste. You should have said ok selling this fo you want to buy it if not I shall sell elsewhere.

you can’t have expectations in your mind then whinge as no one can read your mind,

YABU, it was your mistake and responsibility to sell the ticket. Your financial risk.

Your sister with the DC should have got back to you, but when she didn’t you had options to sort something else out and didn’t.

Other sister’s boyfriend wasn’t U to use the ticket & not to pay.

This has happened to me a few times and no I never sell the ticket, just let someone have it.

No, you didn’t sell him the ticket. You couldn’t go so it was used by someone else to avoid going to waste.

Blimey OP first one sister messed you about regarding the ticket, then the second sister's boyfriend hasn't got the manners to offer payment for it even though he used it.
Do your family always treat you in such a dismissive way?

No I wouldnt expect payment.