WANTED - Small piece of underlay and pale grey carpet

[ninbi]

We have taken up a built in cupboard which has left a rectangle of roughly 85cm x 50cm of exposed floor. There's a new piece of furniture going in which will completely cover the space but we need to put something down on the floor. The carpet shop says they don't do offcuts that size and the carpet's only two years old so I don't want to replace it all, so I wondered if anyone had a small piece of leftover thick underlay and/ or pale grey longish tuft bedroom carpet (like this: https://www.morganandquinn.co.uk//carpets-c2/saxony-carpets-c22/abingdon-flooring-love-story-deep-feelings-p2256/s22065)

Thanks so much!!