New account complaint

Hi visited Edgars Southgate on the 11/01/2019 to apply for an account, was advised by a consultant that I will receive an sms to confirm. After 2 days went back to Edgars to do a follow up, I was told that my application was declined due to affordability. So I decided to call and get the correct reason. I spoke to Lindiwe from Southgate accounts who explained that the reason why I was declined an account with Edgars is that I need to have an account with other retails industries like clothing or furniture account before they can approve me for an account. which doesn't make sense because I already have a credit history profile( car finance and credit card).