Unable to download Discovery Bank app/no alternative website

I have had a Gold Discovery credit card for a number of years and it was administered very satisfactory on the FNB platform. With the recent opening of Discovery Bank the card needs to be migrated to the discovery Bank app. I was contacted by Abea from Discovery and requested to download the Discovery Bank from my Samsung GT 19505 app store in order to complete the migration process. Unfortunately it seems my smart phone is too old and I am unable to download the app. Abea transferred me to Discovery's IT dept but they were unable to assist. I asked if there was a website for Discovery Bank that I could use, only to be told that "they are working behind closed doors"! Nobody seems to know if Discovery Bank is developing a website or not. I find this most inconvenient as I am (for now) able to use my Discovery Card but for how long? I need to make some adjustments on the card but am unable to do so as it is "in limbo". All major banks provide a banking website for transactions so I cannot understand why Discovery Bank is intent of forcing customers to use a smart phone app. I am a senior citizen and find banking on an app very difficult and do all my banking by PC. Can someone at Discovery Bank tell my if a website is in process and when it will be up an running?