In the mental health unit I worked in in the UK we sent out appointment letters with a tear off slip at the bottom and an sae asking patients to return the slip confirming attendance or inability to attend. (didn't always work but we tried !) then we decided, if a patient had not attended a Consultant appt to call to see why ....sometimes (and this is true !) the patient would say 'oh I had a chance to go shopping/out for the day/etc'...were politely asked if, in future they cannot attend to please LET US KNOW ...if someone called within say, an hour of their appt, we would call someone who lived within fairly easy reach of the hospital and offer them the cancelled appt ......and yes, clinics were overbooked ....those returning for routine appts were then seen by an SHO instead of the Consultant, but it was very unusual for everyone to turn up ! DNA letters were sent referring them back to the GP and THEN they would ring up irate .......so we would explain to them, on the third occasion of a no show, you are referred back to the GP and have to ask them for a new referral ! I live in France now, and although I do not know what happens about no shows here (never not turned up myself !) we do pay 25 euros every doctor's visit and more for home visits, or a specialist consultation at the hospital ....but all cancer treatment and other long term illnesses are not charged for. Transport is provided if you are unable because of your illness, to get yourself to the hospital and from where I live it is in excess of 100km to the specialist hospital I need to go to . We also have to pay for a top up insurance (not private) and depending on what level we want to be covered, (I,e, hospitalisation for non ALD illnesses, specialist consultations, etc etc) it costs the two of us old people (!) more than 200 euros a month ....but for the services we get it is worth it ! Post Brexit if we are no longer covered by the reciprocal agreement, it would cost us around 2,000 euros a month EACH ...but then, if all elderly and ill people had to return to the UK can you imagine the cost to the NHS !! (unless it paid for Dignitas !) SO YES I think a charge would be an excellent idea ...perhaps leaving your credit card details with the GP surgery so a charge can be made unless the reason for the DNA is illness or death ! I cannot BELIEVE the NHS provdes interpreters as well, free of charge ! WHAT !!!!! here in France, as in Spain when we lived there, we were told if our language ability was not good enough we had to provde an interpreter and pay for it (which we happily did at 20 euros an hour !).......the NHS MUST do something or it will be impossible for it to continue to be a free #cradle to grave# service. 