I got one PR # 4020009272 for G11 size 2x1020x1200 mm.
You place order 2.488 m2 that it's not logic.
If you go back to see size above, that's mean 1 sheet = 1020x1200 mm = 1.23 m2
So, it's not possible for vender to cut sheet as your order.
Please consider to modify your PR from 2.488 m2 to be 2.46m2 (2 sheets) or 3.69m2 (3 sheets) if not enough.