You can track all incoming Direct Debit payments using your Cheqdin online payments page.
Here's a look at what the transaction statuses mean:
In-Progress: These are the transactions which have been submitted to your bank for processing. It can usually take 3- 5 working days from the due date for the processing to be complete.
Success: These are transactions which have been approved, and the payments processed. Both you and the payer will be notified by email once it's approved.
Failed: These are the transactions which the bank was unable to process. It could be because of: