Urgently need assistance

I bought a Kreepy Krauly Pump Filter combo from Builders Warehouse just over 2 years ago. It started giving problems with the selector very soon afterwards. After about a year, I found the selector arm had snapped off. Builders couldn't help me but I eventually repaired it. It has now broken again and I don't think I'll be able to repair it. Apparently no one keeps stock of these spares and Kreepy Krauly are no help.