That's sad! I would give Beta a shout on their FB page or something. They have sold heaps of bikes recently due to happy customers and feedback and I think they don't want to soil that reputation by importers or dealers giving you grief. Here in Australia Beta has set up a website to order the parts as the dealer network is not as big (yet). Most stuff shows up either at your doorstep or at the local dealer in within a few days. Seems they are well organised and let you know when it's backorder too.
Oh yea. I don't think it's beta. I've been reading reviews from other customers about poor service from these guys. Dealer I got my beta from puts an order in once a week and always really quick turn around. I think only back ordered items are full plastic kits, individual pieces are readily available