No delivery of service

I have a revolving loan that i took with standard bank and i also included a retrenchment policy. I was retrenvhed on the 31st of March 2019 .Then i was getting pay till june .then on the 29th of june i went to standard bank in Carlton centre where i was assisted by Phendile Ndlivu who sent the email for a claim but nk response .Then on the 14th of August i went to golden walk and i phoned spoke to Pumi Mtshali from Credit life who promised to call to update on the proceedings but nothing . On the 22nd of August i went to standard bank eastgate and we called and we were told all managers went to training an email will be sent to me but nothing .i was told that my policy was cancelled the 27th of july 2016 without my knowledge or any letter of warning from standard bank . Now my accoynt its still beeing overdrawn and noone is prepared to answer my questions .is that the way to treat a customer !!!!!!