i set default group no access and they can still use the shop 

Are perms working for GUIShop ???

From reviewing the source of the plugin, the permission "guishop.allow" is only used if the player cannot build in the area the shop is.

so it needs different permissions cheers

anyone know and is willing to add permissions to GUIShop plugin
I want it so i can switch on/off the groups of who can access the shop and who cant. (/shop)

Could always suggest permissions to add.
I'll release a small update for this once I'm back home today.

excellant and thanks Default
much appreciated

Done and added, just got to make a quick update tonight then everything should be in working order.

I didn’t have time to fully test it, so if you could get back to me on it that would be awesome!