Fully agree with you Oldwoman70.
Not sure where in Wales you live, Casdon, but in our part of West Wales, WiFi and phone connection is very hit and miss. Most official calls to those wfh seem dogged by this, with the workers having to apologise for being unable to access information, and sometimes phone discussions being unintelligible. All official calls seem to be prefaced with the Covid warning, that staff are wfh, and delays are to be expected. Personally, I arrange a task, eg making a cake, reading the paper, if I have to make a call, put the phone on speaker, and get on with the task, not infrequently waiting around 1/2 hour.
I am certainly not against wfh, DH did this for 25 years at his own business, with occasional site visits, and it was a godsend when dd was in school if she was unwell and unable to attend, and during school hols, as I had the sort of job where you couldn’t just phone in and say the child was ill and you wouldn’t be able to come into work. But now that everything is computerised, home workers must have access to good systems or it falls to bits.
GSM, as JANH says, DVLA are in Swansea, not Cardiff, so it is entirely possible that their drive to work area includes staff living in areas further west where internet connections are poor