Discovery bank application = lost in dark space

Had the unpleasant experience of trying to get help from Discovery Bank for an application of a new credit card. Firstly, can I just spare everyone some time - go somewhere else! much easier... Anyway, trying to help my elderly mother to get this application completed online, already here Discovery misses the mark by a long shot! very complex confusing process with vague (if not useless) guidelines. Nevertheless, we managed to get a application submitted (after about 4hours), only to have it "declined" due to invalid documents - now, for those who tried this, many congratulations for figuring out *** they want.. and trying to change/resubmit is an even more *****ed up. Let me just say, all the documents were provided in the first place! it looks like they are just not linked to the document set, which belongs in a documents group, which contains specific documents... ***... tried calling the call center for help and omw - i'd rather run head first into a wall!! So here we are! wishing someone more clued up can actually open their eyes, look at the documents and process the damn application - or just tell us to go away!