do their cashback systems have any cap or limited on usage?
HSBC Cashback Credit Card allows unlimited cashback on every transaction. For the following categories, you’ll earn cash back on all purchases: 10% cash back on all spend on dining, food delivery and groceries and 1.5% unlimited cash back on other spends. 10% cash back is limited to 1,000 in every billing cycle. 1.5% cash back will not be applicable on some of the categories.