When my old mechanical meter packed up Scottish power lied to me and persisted in telling me that by law I had to have a smart meter.
I don't want one. My Mum suffered terrible grief when her recent, supposedly updated, smart meter failed to operate when she switched suppliers. Then there is the question of temporal charging, the f@#$%*s charging me more at peak times
A cut and paste of the regs from the governments own website, and a threat of legal action if they kept lying to me quickly brought them to book. My meter cupboard is outside, so just the be sure they don't try to bend me over I got 2 x industrial grade hasp and stables, and 2 x £50 Chubb padlocks that nearly gave me a hernia ligging home from the shops. They'll struggle to get in there now, and if they try it and don't have a Court order (which they won't) ill have them for criminal damage.
They're a bunch of liars, plain and simple and should not be trusted at any level. They have government imposed targets to hit and staff are incentivised to push smart meters and will persist in the most extraordinary lies in order to try and get one into your premises. Do not let them do so uncer any circumstances.