Their faq says:I disagree with this as everyone receives the test that applies.
“The first stage of the process is an application form, which is completed online. If successful at this stage, you will then be asked to complete a situational strengths test (SST), again online. If you meet the standard on the SST, then you will be invited to undertake an on-demand strengths based video interview. Should you be successful at this stage, you will then be invited to undertake a case study exercise. The location of the case study exercise (virtual or in person) will depend on the Covid-19 situation and government guidelines at the time of interview.”
Have more faith in yourself. If you got to that stage you have progressed.