Ok, I have some good news and some bad news for you. The good news is yup, I can definitely solve this puzzle in under 10 seconds flat. The bad news however... Is really bad news...
I can confirm that you
do NOT have a Smart Meter, nor one that is capable of being converted to a Smart Meter as-is. That's a Landis+Gyr E110 Type 5235A if memory serves. It's just a bog standard single-rate traditional meter, with literally nothing smart or otherwise special about it, so it's impossible to fit a Comms Hub onto that meter, let alone an IHD. The only way to make it Smart is to do yet another Meter Exchange for an
actual Smart Meter. I honestly wish I could have said otherwise, but what you've shown me here is extremely... Disappointing... I will flag this up with Beki in case she can help get this resolved.
Just to make things even worse, that particular meter seems to have a certification stamp of 2014 on it... So it's literally not even brand new! Surely it must have been obvious to the engineer that it wasn't a Smart Meter though... Right? Especially since you could hardly even get them back in 2014
Admittedly, this is also a perfect chance for me to show off the skills of my friend Blastoise186, but
here's some examples of what actual L+G Smart Meters look like. But if you compare those with yours, you'll very quickly see what I mean. This will also explain why you're still getting the reminders as well.
It also looks like your main fuse is missing a tamper seal or two. Please don't tell me that last engineer forgot to re-seal it?!?!?! Either way, for your own safety please don't touch any of that stuff, or you may be in for a rather nasty surprise, it'll definitely be rather shocking, that's for sure. 😁