Same happens to me a few weeks ago. I agree the only way is to get a upgraded to ZO2. Apperently Scubapro build some limited ZO2 for such cases .. I was told

I am wondering what the real charge is by Scubapro. I was told first $300 and then it will be $600. So I am wondering how much the dealer gets out of other people's bad luck. Just for the info to negotiate...
Andreas