What is Descriptor ID?
Descriptor is a text string identifying the company which can be found in the billing statement. You can normally find a statement/receipt in your online account with the bank.
Descriptor ID (also called the dynamic descriptor) is a set of 4 digits which will look like on the example below:

For instance, if your descriptor is ownrwallet.com | 1234, the descriptor IDto enter for verification is 1234