I think this BBC radio four interview with an ex-chugger is very enlightening and gives a good indication of how this form of fundraising is conducted by the sector.
The PFRA is meant to regulate this type of behavour and they have been in existance since about 2005 but chugging has got worse and the bad behaviour has intesified in recent years. To me, I think this pretty much proved that the PFRA are not capable or indeed have any inclination of regulating chugging. I have complaint to the PFRA about bad practices in chugging only for them to defend this to the hilt. I think that the PFRA are just a marketting branch of F2F under the false pretence of being a regulator.