Do Equivalent or Lower Qualification - ELQ fees apply to UK students wanting study a Masters course if they already have postgraduate diploma in different subject?

No, ELQ fees (Equivalent or Lower Qualification) do not apply to UK students undertaking a Master's degree after completing a postgraduate diploma, even if in a different subject.

ELQ fees are designed for students who are already holding a qualification *at or below* the level of the course they're applying for. A postgraduate diploma is a postgraduate qualification, and a Master's is also a postgraduate qualification. Therefore, a postgraduate diploma is *not* considered an equivalent or lower qualification to a Master's degree. The student would be expected to pay the standard postgraduate tuition fees.