can some one help with this please

trying to find a stubborn dirt brush for Dyson Ball Animal Origin bought last year.

part numbers  918508-01 and  971429-01 do not fit- both are too small and/or wrong shape/style

this is driving me nuts as I’m sure it’s an easy one to solve

online guys at Dyson are really frustrating as they insist 971429-01 does fit

PLEASE check your items as they do NOT fit

So, is there a stubborn dirt brush for this particular vacuum or not?

Pictures attached