I need to buy a new 58mm portafilter holder for my Smart Grinder Pro. Has anybody ever purchased one and in that case from where?

There is one available on Breville web site but I think they have problems because I tried twice and the order did not go through (https://www.breville.com/us/en/parts-ac ... 08606.html) .

Espressoplanet in Canada has one that should work, but honestly $30 shipping for a $6-$10 part ...