Cancelling or rescheduling your BLS appointment without a passport block
Step-by-step instructions to reschedule or cancel a consular appointment in BLS Spain without the system disabling your passport for weeks.

An unforeseen event has arisen, you are missing an essential document, or you found a much better date and you need to reschedule your BLS appointment.However, if you click cancel lightly, the BLS computer system may apply a 'duplicate passport lock' that will prevent you from scheduling a new appointment for weeks on end.Learn the safe method to reschedule without suffering technical penalties.
Why Does BLS Block the Passport after Cancellation?
To prevent malicious people from continually booking and canceling appointments by messing with calendars, the BLS database associates each reservation with the unique alphanumeric number on your passport.
If you cancel an appointment without following the correct flow or try to schedule a second appointment while the first one is still active in the system, the software returns the dreaded error message: 'An active appointment already exists for this passport number' or 'Passport number is temporarily locked'.This block may take 48 hours to 15 business days to clear automatically.
The Secure Reschedule Procedure (Reschedule)
- Use the 'Reschedule' Option Instead of 'Cancel'Almost all versions of the BLS portal have the specific 'Reschedule' button within the appointment management module.
- Reschedule AdvantageWhen rescheduling, the system does not cancel your previous registration until you successfully select and confirm the new day and time.If you don't find a better slot, your original date remains intact and protected.
- Limit of Changes AllowedMost BLS offices limit the possibility of rescheduling the same appointment to a maximum of 2 times.Once the second attempt is exhausted, the option is blocked and only the forced cancellation remains.
Keep readingThe documents BLS cannot legally require from youWhat to do if you need to cancel permanently?
If you must cancel, do so at least 48 hours before your appointment.Save the cancellation receipt in PDF with the confirmation code.
If after canceling you try to schedule another appointment and the system says that your passport is still linked to an active reservation, you must immediately send an email to the local BLS helpdesk (info.bogota@blshelpline.com, info.mexico@blshelpline.com, etc.) with the subject 'URGENT: Passport unblocking due to confirmed cancellation', attaching your cancellation form and passport photo.
Cancellation and Rescheduling Operational Rules at BLS
| Applicant Action | Advance Required | Passport Status in Database | Operational Consequence |
|---|---|---|---|
| Early Rescheduling (>48h) | Minimum 2 business days before | Active and enabled immediately | Allows you to choose a new available slot |
| Formal Cancellation on Platform | Minimum 48 hours before | Clean without penalties | Space released for another applicant |
| Late Cancellation (<24h) | Less than 1 day before | Temporary penalty warning | Possible delay for new shift |
| No Presentation at Headquarters (No-Show) | Unattended appointment without notice | Blocking due to non-attendance ('Blacklisted') | Veto from 30 to 60 days to make an appointment |
| Simultaneous Double Date Attempt | Same passport on two dates | Automatic cancellation of both appointments | Loss of both turns due to the firewall |
Key Practical Tips
What the team recommends before you file anything:
- Never try to bypass a block by changing a letter or number of your passport on the form. At the physical window they will detect the discrepancy and expel you immediately.
- Make date changes from the same browser and device where you originally scheduled to retain authorized session cookies.
Required Documentation Checklist
- Original reservation code and exact email address with which you registered.
- Priority use of the 'Reschedule' function over direct cancellation.
- Download the cancellation acknowledgment issued by the system in PDF.
- Wait for a safety margin of at least 24 hours before attempting a new reservation.
- Submit formal ticket to BLS technical support if passport is not automatically released.
Sources: Políticas de Cancelación y Reasignación de Citas de BLS International; Normas de Seguridad Telemática Consular del Ministerio de Asuntos Exteriores; Portal de Soporte al Solicitante de BLS Spain Visa.
