Before calling the Account Information Service the TPP must obtain consent for a specific IBAN for a period of time (maximum 90 days)
See psd2-sandbox-general for the PSUs and related IBANs defined in the sandbox.
Once the consent has been provided by the PSU the TPP may call the Account Information Service with the script ./account-information.sh. (The consent.sh script writes a file "last-consent-id.txt" which the ./account-information.sh script uses to submit the request).