With IELTS 6.0, your child already meets the requirement to join BUV's main academic programme directly. The university's EAP/Unipath classes are only for students who have not yet reached 6.0, so there is currently no higher-level English course available before enrolment. In practice, many BUV students start with IELTS 6.0 and do very well, since the programme includes a transition stage into university-level study (UKPW/IFP) and ongoing tutor support throughout their studies.
To further improve their English proficiency independently ahead of the bachelor's programme, your child can study at home by focusing on: reading academic texts in English, practising essay writing, listening to lectures in English on their chosen subject, and becoming familiar with subject-specific terminology.