ARB Canopy - Interior window catches.

I have a HiLux that's fitted with a Toyota canopy - this is made by ARB and is identical in most respects.

Today I broke one of the side window catches that secures the window on the inside of the vehicle.

They are a plastic fitting that can be attached to the exterior window latch.

I've looked at the ARB & Toyota sites, but I don't see these items listed. I imagine that they break occasionally as they are only a form of hardened plastic.

Can anyone assist in where I might get a replacement. This type of event always seems to occur on either a weekend or a public holiday, when the maker/suppliers are closed.

Dick