You have 2 options:
1. Option 1: The student can wait for 1 month and post that register with ACCA
2. Option 2: The student can write to ACCA at students@accaglobal.com informing them of the scenario and requesting a bonafide letter format, which can be further provided to the college to get his details in the required format and upload the document while doing his Initial registration for ACCA.