Approx Cost Of 5m3 Lafarge Gyvlon Screed ?

[Renovation]

Hi I'm trying to work out whether a thin self levelling screed is an option and the Gyvlon seems ideal with a plant nearby too.

They won't give me a price as I'm not "an approved installer" - it seems silly to mess trades around if the price is too high and I was hoping to work out a budget cost tonight.

Anyone bought some or something similar ?

Thanks

[Renovation]

Thanks.

I'm in Warwickshire.

Could you give me a guide on what the material cost is on 5m3 ?

I'm weighing it up against a timber floating floor (want to insulat an existing slab) and at £21/m2 it isn't worth doing.