Household Smartshopper

Two weeks ago I submitted my household smart-shopper form so that my wife's and my card can be linked - nothing had happened a week later so I re-submitted it and logged a query with their customer service department. Each time I get an email response stating my query will be dealt with shortly... Like I said, two weeks later, 2 submissions, 3 queries and I still have not heard anything and our cards are still not linked...