Your Active, Closed, and pending installment plans can all be viewed in the Hub https://hub.splitit.com/
Please use this guide https://developers.splitit.com/merchant-hub/getting-started to learn all about the Hub and the things that can be done for your customer's installment plans.
For funding or deposits, every deposit made into your merchant account by your acquirer/payment processor is itemized with your Splitit merchant number and has a unique transaction number for tracking purposes. This can also be monitored through the Hub in the Reports section, found here https://developers.splitit.com/category/reports-and-logs.