First the bad news. There's no good news.
In this day and age you could reasonably have expected stereo, but unfortunately, that's DAB for you.
It seems wherever they can get away with it, they compromise transmissions to save bitrate.
On an official listing, Planet Rock is down as 80 kbps MONO! Diabolical but true.
You've only got to look at previous DAB threads on this forum to see how much most (not all) people hate DAB.
I was bought a DAB radio as a leaving gift by some kind work colleagues that had sadly been guided by the DAB hype. I returned it for a refund. (The colleagues didn't know that)
Sorry about that rockerma66.
Planet Rock digital is available in stereo elsewhere though (possibly at higher bitrates? - you wouldn't want any lower!). Check the listings of the different platforms.