So SmartBuy, HDFC's e-mall or virtual storefront that's integrated with its PayZapp app, comes with a disclaimer, "SmartBuy is a platform only for display of offers extended by Merchants to HDFC Bank's customers, and HDFC Bank is not selling/rendering any of these products/services....
In the context of the input sentence, determine the relationship between 'HDFC' and 'HDFC Bank'.
Options: manufacturer, operator, original broadcaster, legal form