Payment Gateway Use Case: 

1. Browsing and Selection: 

• Customer browses through the toy collection. 
• Selects multiple toys and adds them to the shopping cart. 

2. Checkout Process: 

• Proceeds to checkout to finalize the purchase. 
• Enters shipping address and other details. 

3. Payment Method Selection: 

• Chooses payment method: credit/debit card, net banking, or UPI. 
• Enters payment details securely on the payment gateway page. 

4. Authorization and Confirmation: 

• Payment gateway encrypts and transmits payment information. 
• Customer's bank verifies the transaction and confirms payment. 

5. Transaction Completion: 

• Money transfers from the customer's account to Big7 Stores' account. 
• Order confirmation email sent to the customer. 

6. Order Fulfillment: 

• Big7 Stores processes the order, packs the toys, and arranges shipment. 
• Shipping details shared with the customer. 

7. Delivery: 

• Customer receives the order within 3-5 business days. 
• Enjoys the purchased toys hassle-free.