Wow!!!
I agree, you should let them know that you think everyone should consult you before purchasing anything else for your wedding. Not because you don’t appreciate their help, but because you don't know what is provided by the resort yet, what other people have already bought, and you don't want them to waist their money on stuff you might not be able to use. We really want to pick out our own accessories so we just let everyone know from the beginning not to buy us any wedding stuff. We really want to pick our own cake topper, guest book, wedding album, etc. so everything matches and flows well. I think everyone understands that. It's your wedding and that doesn't make you a bridezilla, haha.