Spotify Free without time limit for music

I found a bug and I hope that you guys can help me verify it on more Spotify accounts.

I have the free version of Spotify with a time limit of 10h music/month. When I see the ticker that tells me that I only have less than an hour of music to listen to left I wait for the commercial break and pause. Leave the pause on for 30 minutes and when I get back. Voilá, the ticker has reset and I can listen to unlimited music. Is it only my account, or can you recreate the bug?