Thank you for posting such a thorough review! As I was reading it I kept thinking, "I just can't believe that!" You are so sweet and I could tell from reading that you tried to give Daniella the benefit of the doubt in the beginning, and tried to "go with the flow" as much as possible. However, she was unprofessional and her service unacceptable, as was the resort's failure to respond to your complaints.
I am sure that Riu is a beautiful resort - and it sounds like they have other wonderful employees. But, there are a zillion beautiful options in Cabo - and weddings are big business. If I were a bride still searching for a location, not only would I never consider Daniella, but I wouldn't even think about the Riu since they have failed to take responsibility for her actions. The bottom line is Daniella is a Riu employee and they should compensate you for her terrible service. I agree with Julie - you should spread the word --- unfortunately, that seems to be the only thing that might get their attention.
Enough of that - you handled yourself beautifully - true grace under fire. Having to move the ceremony, guests standing, etc ... I think I would have been in tears from the make-up!!!
Congratulations on getting married! And, again, I'm so sorry for all that you went through!