2 stage interview, however they took a while to get back to me after each stage. I was informed by the recruiter that they have been interviewing for 3 months and that all the candidates struggled with the case study. Other recruiters advertised the role as a new opening today. I feel great as I almost underestimated myself.
Tip - if an interview does not go well, always ask the recruiter the feedback received from other candidates they presented for the role. Also if a company is struggling to recruite for a role, don't bother applying for the role!