everythings changed since i bought my shares as they are now only available on the french stock market [or something!!]. I bought mine from Hargreaves and Lansdown, their charges were very reasonable, they were very helpful and I had no problem getting them transferred over to the french market. their number is 01179889880.
Bought mine from www.squaregain.co.uk Customer service nil but at least share are those listed on Paris Stock Exchange.
No minimum although you'll be charge a fee so the more you buy the less effect the fee has
You need a minimum of 500 to join the shareholders club and 2,000 for free membership.