Answer:
(Fatwa: 109/89/H=1432)
If you are not related to the interest-based job, rather you have to contact credit card branch instead of bank and advise the customers, and the credit card does not necessarily involve interest based dealing, then the ruling of haram will not be applicable on your job and your income.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
