Nissan Caravan spares

[Kernowking]

Hello everyone

We bought a Nissan caravan campervan having been happy Nissan owners, really pleased with the Qashqai and Juke we previously owned. We still have a Qashqai. The Caravan failed its MOT recently and needs a new rear wheel bearing. It turns out the vehicle is an import from south Africa. Our Nissan garage can't track down the part and I've tried beforeward autoparts but no luck. Does anyone know how to source Nissan spares from South Africa?  Thanks