Why do C6 for e maths and B3 for combined science not let you get into NITEC engineering?

I got C5 for emaths, C6 for combined science (biology and chemistry) and I got a diploma in electronics.

I even got a Degree in electronics 2 years ago and working in Electrical field now.

TBH, maths is VERY necessary is engineering. Fourier transform, transfer functions, forces, etc all are maths.

When I was studying in poly, engineering mathematics is actually A maths and I can cope. So do not worry and follow your heart.

As long as you have the passion, you will be able to do it.