Repository › Forums › Support › WooCommerce Extended Coupon Features PRO › Buy any item of group, pay specific 1 item less › Reply To: Buy any item of group, pay specific 1 item less
A+B+D = three products. So maximum amount is not respected.
A+B+D = 45. So maximum subtotal is not respected neither.
I think what you are trying to achieve is not possible with the plugin.