If you require access to the UCT HPC cluster but are not a UCT affiliate you will need a UCT third party account. You should not request third party email access.
Your supervisor, PI or HOD will need to apply on your behalf via your departmental IT liaison.
The IT liaison will capture you as a visiting academic, it is important that your affiliated institutional email address is included in this process.
You can then proceed with the HPC application form using your affiliated institutional email address in place of the UCT email address.