>>Sexist<<
It could be that your husband is considered the primary account holder, because he had his number first & his was used to originate the Vacation Club membership...not because of his gender.
I went through this same thing recently with my bank. When we moved, my wife setup all the bank accounts. I pay all the bills, but when I called the electronic banking department with an error, they give me hell because I am not the primary account holder. I had to get her on the phone to "authorize" me!
PF