If the government think track and trace works their having a laugh. I've just isolated for 10 days. Got 2 phone calls a day to check up I was isolating. Here are the searching questions I faced. What's your year of birth. Are you isolating at the address on your passenger location form. Answer, yes. No more info asked for. Have your had your Pct tests, answer,yes. That was it.
What the hell they got from that, exactly the same script every time they phoned. Apart from giving people a bit of work and pin money,it's a totally pointless exercise.