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Myson Touch TS EU to Tado

Today I went and bought 5 TRVs and a Wired starter kit but seems I may have made an error so looking for some help.

Currently our house has 4 Myson Touch room thermostats. We have 3 downstairs which control our underfloor heating for 3 different zones: kitchen, living room and hallway & bathroom. Upstairs is one Myson Touch which controls radiators in all bedrooms and one radiator on the landing,

Our hot water is controlled by a Honeywell unit which sits next to our hot water cylinder so the Myson units have nothing to do with water AFAIK.

I was planning to replace the Myson Touch unit upstairs with a wired Tado thermostat and Tado TRVs for each rad but going through the installation the app tells me I can't actually do that and I need to buy the wireless kit with wireless receiver for hot water control.

Can anyone confirm if that is actually necessary or if I can proceed with just the wired thermostat? I got as far as taking the Touch off the wall and can see that there is no wires going into the H/W terminals. Existing wiring uses NO, L and N and there is a bridge between COM and L.

As I can't see the correct wiring instructions in the app I'll get someone in to do the work now but I'm a bit confused about this at the moment so wondered if anyone had any ideas.