Regard gonk views on spelling grande. the label has been approved and been in circulation for a while.
They're not "my views" - that the adjective agrees with the gender and quantity of the noun is a basic grammatical rule in French. Your label is misspelled and whoever "approved" it was mistaken in that respect.
For the record, I would refer you to p. 83 of Hugh Johnson's definitive work "The World Atlas of Wine" (4 ed.). In the section on the language of Bordeaux wine labels, it states:
"Grand Vin: Simply 'great wine', often to distinguish it from a 'second' wine"
Note the spelling . . .
By the way Ned, I have a couple of other questions - if as your website puts it one can "Turn
€5,750 into
€25,000 by investing in your own Bordeaux Vineyard" - a return of 375% on investment
(a) Why are you sharing such fantastic returns with the public? Why not just borrow all the finance you need from your bankers to keep all the profit for yourself?
(b) Why is the EU initiating a scheme to take enormous areas out of production if such returns are possible for retail investors?
(Maybe I've answered my own question there - is the idea that you buy a vineyard for €5,750 and the EU pays you €25,000 to stop producing wine?)