Where do I go to see all deposits for one month?

Not sure if this link is posting correctly, but on my QuickBooks Desktop I can access the Merchant Service Center from the "My Shortcuts" on the left side of the QuickBooks menu screen. You should also be able to access it from the Banking drop down on your tool bar.

https://quickbooks.intuit.com/learn-support/en-us/help-article/account-management/access-merchant-service-center-quickbooks-desktop/L36eUIFOA_US_en_US#:~:text=QuickBooksHelp,October%2001%2C%202021