Matching a customer identity by checking a set of attributes related against the account data bound to their phone number.

Verify matching of a number of attributes related to a customer identity against the verified data bound to their phone number in the Operator systems. Regardless of whether the `phoneNumber` is explicitly stated in the request body, at least one of the other fields must be provided, otherwise a `HTTP 400 - KNOW_YOUR_CUSTOMER.INVALID_PARAM_COMBINATION` error will be returned. In order to proceed with the match check, some Operators may have the requirement to perform an additional level of v...