One **** from the SP's support just came up with the lamest explanation why they are not fixing this issue: because they have millions of players, they cannot check what's wrong with a single account. Hey, the application can fetch the right profile from the server - I am sure support can too, if they wanted.
This is getting beyond stupid. DC is a collecting game - so a bug that makes it impossible to expand the collection is a showstopper. I guess they just don't want my money - I am not paying them a dime until this is fixed, and if I run out of space - I'll stop playing altogether.
EDIT: CS Rep info removed.