See what a link has taken

On the link’s page

Open Payment links and choose the link. Payments through this link shows its newest ten payments, with their amount and status. Open one to see its page.

Every person who opens the link starts their own payment, so the list includes payments that were started and never paid. Count only those that say Paid.

Every payment, and a total

The link’s page does not add them up. For that, export your payments for the dates you want. Each row has a payment_link column, so in a spreadsheet you can keep that link’s rows, keep those whose status is succeeded, and add up the amount.