Kitchen plinth heater (Central Lancaster LA1)

I bought this five or six years ago to replace the ancient wall heater in my new flat. The electrician who installed it told me that he couldn't figure out how to use the remote control. Without bluetooth pairing you can't set the timer but he showed me how to switch it on and off. The problem was that the remote control in the manual looks completely different to the one supplied with the heater. It turned out that my kitchen doesn't really get very cold so I've only ever used it an odd time or two and now I've forgotten how to switch it on and off. It's been taken out as I'm getting a new kitchen installed and I wondered if someone else might be able to make use of it. It could only be used by someone who knows how to tinker with electrical things to get them working again. I will only gift this to someone who is reasonably confident that they could get it working.