[AussieWog93]

I always assumed this was a purely Aussie phenomenon, but I guess it makes sense that it's more of an "informal speech" thing than a regional ism.

[Dathuil]

I can't read the link but we've the same thing in Ireland. I've always assumed it stemed from shops being family owned. e.g. We have a stationary store that was originally called Eason and Sons which when said quickly sounds like Easons.

There'a s few other examples but that's the one that always stood out to me

[walthamstow]

It's British too. Tesco is always called Tesco's.

[Lio]

British supermarket Sainsbury's even put it in their logo.

The actual name of the company is J Sainsbury plc.