Extremely disappointing service received

Extremely disappointing experience. Currently have a cheque account with Discovery Bank and several savings products and investments. App**** for a credit card, on their suggestion to have a bank suite. Application was declined due to affordability, despite me speaking to two consultants and adding comments that our homeloan repayment is paid by my husband, submitted supporting documents in this regard. Was advised to cancel my Revolving Facility and then apply again for the credit card, again it was declined due to affordability as they keep including our homeloan repayment under my expenses. I've logged a complaint with Discovery, received an automatic response, but nothing further. Very frustrating and I am very disappointed with the level of service received.