I expected more out of my initial call and was a bit upset afterwards because I felt like my wedding would suck if I didn't upgrade to all the bells and whistles. Reading more on here and the Fans of Sandals Weddingmoons page on Facebook helped calm my nerves that everything will be perfect regardless what I choose.
I am dealing with Amy in Miami and initally she tried to sell me the $6000 package after I told her my group of 10 wanted to forgo the formal reception and have dinner at one of the restaurants instead. I haven't found the Miami WC's very helpful, unfortunately. I get very vague answers that are usually not very informative.
Thankfully I have a new TA taking over my trip and she was surprised that I have been handling any of the cocktail hour/reception/spa appointments/flowers/pictures stuff. She's totally going to bat for me and will be taking care of as much as she can. As she puts it, she's got way more pull than little old me!
Are you working with a TA? After your initial call on Thursday, you might have better luck letting them be the go-between with the WC.
If you are the main contact to Sandals, don't let them pressure you into anything. I believe they make commission on whatever they upsell you to. The only thing I've pre-paid for is photography because I was able to get in on a really good promo they were having a few months ago. I've read other people saying they didn't have any trouble as long as the guest is really a guest and stays at the resort for at least 3 days. I think the resort photog will still be present for a little while but they should be ok to work with the guest working as your official photographer.