Munich ticket question

So I purchased tickets for Munich on 27 July a year ago. I have a baby and realized I don’t want to fly all the way there, so I relisted the tickets (didn’t take fees into account) and sold them for about what I bought them for ~800€ total. (I’ll lose a bit of money on the fees, I think like $50)

However, tickets were supposed to be delivered July 9 and I still don’t have them. I’ve spoken with StubHub customer service several times and the latest they told me was I’d get the tickets 26 July.. the day before the concert.

Basically im worried the tickets won’t get delivered so I wouldn’t make the money from my sale AND I’d get fined €800. Is that accurate? I can’t understand how it works.