Was this money sent back to me by the Universe?

Last weekend, I was in a neighboring country with my partner and their sister. On Saturday night, we went to a local bar, sang karaoke, had a blast!

At one point during the night I got an impulse to leave a big tip and I did. I paid by card and left a tip of about 30% in cash. It wasn't a lot of money but people usually don't leave tips that big around here and I just felt the impulse and thought it would be a nice thing to do since we really had a lot of fun.

Yesterday, I got a notification from my bank that the amount that I paid by card (around €35 for reference) was returned back to me since the bar "didn't claim it". This never happened before and I've been using this card for a while.

I kind of felt bad, I didn't think about it at all, I paid and I was happy we had a nice time. And now they didn't even get the money, and it's a small bar that has a really friendly atmosphere and the owner told us to just act like we're at a house party, that everything was chill and cool.

So, what do you think? Should I contact them and send them the money in another way? Or was this a gift for me? A sign by the road?