multi-domain currencies issue - currency staying as default setting!

Hi All,

I have an issue with Vinson and changing the currency automatically per domain.

So i use www.flexitog.com and fr.flexitog.com for my two different domains.
www.flexitog is english & GBP (£)
fr.flexitog.com should be french & Euro (€)

Current situation is that when using multi-domain on Vinson  setup is a single site using mutli-domain.
So i have a website set-up file that defines all available currencies and also sets the default currency.
I have also have two configuration files for each domain which defines the host, language and currency. (or so it should)

However, if you navigate to fr.flexitog.com it will display in french language but not update the currency ( you have to use the language select dropdown and select the french currency to change the default.