I'm not entirely happy with the situation but feel a bit better knowing that I can still contact the people I was dealing with at Oasis.
You are right. My contract is with Oasis SARL which is, so far as I can make out, a subsidary of Oasis Beach and Golf Ltd.
I have also spoken to my solicitors and they also think that I need not be concerned.
I will feel a lot better when I see the buildings started.