standard bank's pathetic service

last week Friday 12/07/2019 at at 12:54 I receive a call from an agent from standard bank offering me a credit card . our first call was interrupted due to a technical problem on the banks side , followed by the second call where everything was verified and I was told by the agent that i qualified for the account . thereafter when the agent asked me which branch would i like my card to be delivered to , he says that he is facing another technical difficulty and i would be called in the next 20 minutes . after waiting for my call to be answered for almost 30 minutes today (15/07/2019) , my calls haven't been answered nor have i got feedback . very unprofessional service!