Shocking customer service!

What a shocker! Having been a client of Discovery for over 10 years with a stake in most of their product range I have never experienced such shocking customer service. They have so many teething issues related to the credit card, the app but the worst issue is their call centre is hopeless. I have Discovery Purple consultant and even they have given up. I even have direct communication with the head of Service Excellence and he is incapable of answering my queries and just wants to pass me back to the call agents. I wish I hadn't moved from the old Discovery card that worked perfectly for many years. Plus I have just found out Discovery miles has changed whereby I only get 1% miles for qualifying spend. So I used to max out the 15000 miles every month, now I will battle to accrue 5000 miles per month. So frustrated and angry. NB: Do not phone me again I am contacting the CEO directly.