Thank you all for your input.
So an update.. I called my friend asking if we could meet up because I wanted to give her a red packet. She said I could hold on to it until her wedding banquet later in the year. So silly me, I assumed that the wedding ceremony + yum char was all that she was going to do for the wedding.
I am still a bit puzzled as to why I was invited to both because as I've said, we only met once more thank a year ago plus from her email list, I am pretty sure the yum char is for close family and friends.
I am curious, however, for those who get invited to both, do you pay $188-$500 (I was going to pay $500 so I wouldn't offend) for the yumchar and then pay $1000 again for the banquet later in the year?