Shahjalal Islamic banks to reveal their customers’ list along with the customers contact details. However, such a list could not be availed from the banks due to reasonable competitive reasons of the banks. Hence, the study adopted a non-probability sampling method, instead of a probability sampling.
Data required for fulfilling the objectives of the study were collected from 20 customers approached at the counters of the following five Islamic banks in Dhaka city of Bangladesh, namely, Islami Bank Bangladesh Ltd, Al-Arafah Islami Bank Ltd., Social Investment Bank Ltd., EXIM Bank Ltd., Shahjalal Islamic Bank Ltd. According to Bangladesh Bank, the central bank of Bangladesh, there is six Islamic banks in Bangladesh. But, Oriental Bank Ltd.