Incorrect Refund Amount Received

The tax file I submitted using TurboTax Deluxe had my tax refund over $2,000, which included prior covid stimulus payments. My refund received was just over $500.  How can I find the amount that TurboTax submitted?  When I use the mobile app to check the status if I enter either of the amounts it cannot find my return. 

Also, do I need to file an amended tax return to get the remainder of the refund?  Thanks!