You are absolutly right ! I should add another thing, at the end of the season when we want to rent gold cards to gain power to reach higher league, renter always stop the contracts because the price add increase inbetween. So we could be surprised and having our rental remove without noticing
i forget that, i lose 11 boxes on that, because i play in gold 2 and i finish with silver 2, i lose power from renting, and lose boxes from reward. So next time i will watch renting time