I was just married at Dreams Cabo on October 10th... but I arranged the vendors I was using myself/with help from mariana so didn't use the package really.
I think they have some preferred vendors that they use. The cake I believe they do in house, we had an external vendor but then after the wedding I wanted the leftover cake to be sent to our room but they way it was cut it sort of didn't work so they felt bad and sent us a whole new cake which is one of the flavours Dreams offers I believe. It was ok but to be honest I much much preferred the one we had for our wedding.
You can just ask them what vendors they use and then do some research on the forum to see what people have to say. I think, but I'm not 100% that the flower vendor I used, is who Dreams uses and if that's the case, 100% recommend.
I haven't heard great things about the salon services and I went elsewhere and I was really really happy.
They would have a photographer that they always use but I'm not 100% sure who it is, we flew someone in so I never inquired. Definitely someone on here has probably used them though.
My advice would be to send a quick follow up email to your WC, ask her to confirm receipt of your payment, and then just ask for a list of the vendors that they use for your package so you can start researching!
When you are over a year out it seems to take about a week or so to hear back but trust me, even if you planned all of this like 3 weeks before, they do one seriously AMAZING job there and you are in good hands!! Not one single thing went wrong with my wedding, everything was exactly how I had hoped and they have weddings almost daily so they know what they are doing. I worried about stuff throughout the process and it was all for nothing.
Hope this helps a bit! Feel free to PM me with any questions!