They take Betriebsferien for the month of April, then are open part time in the summer. Innsbruck is the next closest, Frankfurt is about 4 hours, so it’d be faster to go back to St Pölten. Ugh. I may try the hair dryer tomorrow. I can do about 20 min before I get sharp pain across the toe box of my larger foot, it feels like a couple of my toes need an extra couple mm of space, and there’s not much foam up there. Back on the ice tomorrow, so I’ll see if it improves.Not sure the hockey shop would be a good idea, I at least wouldn't let them near my boots...
Maybe you could try gentle sport heating with a hairdryer?
If EissportWelt is closed (they close this early? I´m not in Munich right now, so I didn't realize), and you can't bear the pain, then I would suggest Skatersworld in Frankfurt. I think the would be the nearest shop from Munich, and it´s quite easy to get there with the ICE. They heatmolded and stretched my boots, because my forefoot was too wide .
Just don't go to Eisprinzessin in Innsbruck, please.
I would wear the boots for some time, unless you REALLY now that there is no way for you to skate in them. Normally, boots get a bit wider with use due to the compressing of the foaming. At least my boots did, lol