Utterly disgusted with forced changeover to new App

Std Bank decided unilaterally to force everyone to change over from a normal internet banking system to a new App system. What they do not tell you is that it happens suddenly with no time pre-warning; then only to discover that all your beneficiaries and past transaction history has been deleted and then to crown it all one's EAP limit has been wiped out with a message that you have to go past a bank branch to set a new limit. This effectively means you cannot do any internet banking whatsoever until you visit a branch. I am utterly disgusted with such devastatingly pathetic customer service. Nobody answers the customer service phone nor does anybody respond to my email.