If, after the order has been placed, it emerges that execution thereof is impossible or has become unreasonably
burdensome for rommelag ag, the contract shall be adapted reasonably. If this can not be justified from the economic
aspect, rommelag ag is entitled to withdraw from the contract. Should rommelag ag decide to make use of its right to
withdraw, it is to inform Customer immediately, even if an extension of the installation time had been agreed with
Customer. In this event, rommelag ag undertakes to return to Customer payments on account already made, plus
interest at 5 %; any further claims by Customer are excluded.