Hi - I have just had the same experience. I received a phone call from a 'Witheld' telephone number - which automatically makes one think this is a [problem]. I pay the annual PRS licence and now have just got 1 invoice for a current licence and a 50% surcharge for not having notified the PPL that I am playing music in a workshop. I run a legitimate business in manufacturing/construction. Times are tough for our industry at the moment and I find it rather difficult to take that I am receiving a fine for something I have never heard of. If I have to pay for the licence, thats ok, but a fine ? It would be most helpful if you could DM the information you you discussed above here.