We profiteren van de korting. (We benefit from the discount.)
profiteren takes "van" (profiteren van = to benefit from). Example: We profiteren van de korting. (We benefit from the discount.)
We profiteren van de korting. — We benefit from the discount. The preposition van is fixed, so it doesn't change with the sentence.
Fixed prepositions come up all over the A2 exam. The platform drills them in real exam tasks, AI-graded across all five DUO sections.