To use GLOBUS, you first need to visit globus.org and sign in. Here, don't select the organisation, but use a Globus ID. If you don't have an account, create one. Then, select cosma#dataweb as an end point. From there, you will be able to transfer your files. If you do not know your COSMA password, please email cosma-support@durham,ac.uk, to have it reset.
To transfer files, it is necessary to explicitly allow access to your directory of interest. Please contact firstname.lastname@example.org to allow this.