Discovery "online self-service" Grimm reaper bank

I lost my mobile device so I had to reset all my details, I have changed my number and email address and mentioned that my old email address has been compromised but they have continued to send personal mails to the old email address. I have been trying to reset my App so I can be able to pay for my life cover which now is at risk of being cancelled and to pay for the loan but every other the day I get the call about the same thing to pay my debt emails sent to the incorrect details, I have been updating the same details for over two weeks, put through to client services to assist with the app which is not not working and was informed there is no point of going to the branch in Umhlanga as Discovery is an online banking. I have received no assistance and getting threats letters that I will be handed over if I don't make payment. Honestly this is emotionally draining, I'm still trying to recover from being held at gun point this is the last thing I need because it's not that I'm not taking the calls, honestly thier client service is terrible, emotionally draining a waste of time and worse of all thier Loans has such a high interest its design so that you forever remain in debt. I have run out of options, my major concern is my life cover that's due to cancel due to thier failure to do thier job properly. Every day I'm getting threat emails reminded of my policy but I have spent hours on end trying to sort out what they don't even know what's wrong. After all this running around I'm still going to be expected to clear all debts and pay an even high interest just cause they failed to play thier part I must be reprimanded. I regret taking out a life cover and loan with you guys, I regret having an account with you as a whole. And sad part I'm always told someone will call to confirm change of personal details and yet here we are details sent to compromised account details. If I had a wond I would make my debt with you disappear cause God knows I'm already looking for insurance elsewhere for my life cover.