Looking at the student application form for RHS membership, I've been asked what to put under 'College number'.
I have been told this is the College's registration number, so if you put 'BEST in Horticulture' and ' RHS centre number 60650' this should be what they want.
Instead of copying a student card send your introductory email with your username and password for this VLE.
This is the latest information I've had from them.... if you have any problems, please let me know if there are updates.
Janet