8 Months & still no suitcase. Kulula supplier?

I am disgusted in their service too. They collected my bag on the 16/07/2015, 8 months after my bag was damaged on a Kulula flight. It needed to be replaced and it was a cellini. Luggage that is always available .I AM STILL waiting for my bag. Every time i speak to Jeff the owner or Selwyn they can barely apologise, it takes them forever to find my file, then they say sorry and tell me they will deliver a suitcase tomorrow. Tomorrow has never come. I am so appalled by this shocking service and they just dont care???!!! Its now 7 months since they collected my bag and still no new suitacase? Who can i speak to as they dont care at all to sort out this issue. They just keep making excuses and i call every 3 weeks?