RCS REALLY BAD SERVICE

I app**** for a RCS credit card about 2-3 weeks ago the application was approved on 27.09.2019 I received a contract and a week after the contract the courier service delivered my card....after the card was delivered I phoned in to get the pin for the card and n week later I still waited for it ,now all of a sudden I received a email not even a call or a sms saying that my application was declined ,I called in no one can explain why this happen ….I must say it really sucks their service an all through out the whole process no communication and I have to call in every second day and they keep telling someone will call me