Supplementary Silver Account

I've been trying for sometime to get the supplementary Silver Card for my wife, now that I have Gold status[:)]. However this isn't as easy as it seems. I thought as she already had a regular account this wasn't going to be any problem.
Sent in one application by mail (from the US to the UK) as the Premier Line suggested. They said that didn't arrive. Then faxed in another copy of the form a week or so ago, and was told it would be dealt with immediatedly.
Called in today (the 800 number routing is now fixed, as suggested in another thread) and was told that it's still not set up, but that the department is 'short staffed at the moment'.
Anyone else had any issues with this? Seems simple enough, and as she's flying Friday (EWR-LHR) it would be nice to have it set up.
Sent in one application by mail (from the US to the UK) as the Premier Line suggested. They said that didn't arrive. Then faxed in another copy of the form a week or so ago, and was told it would be dealt with immediatedly.
Called in today (the 800 number routing is now fixed, as suggested in another thread) and was told that it's still not set up, but that the department is 'short staffed at the moment'.
Anyone else had any issues with this? Seems simple enough, and as she's flying Friday (EWR-LHR) it would be nice to have it set up.