Which of the following claims regarding Air Berlin's insolvency in 2017 is false?

A. On August 15, 2017, Air Berlin, the second-largest airline in Germany, was forced to declare for bankruptcy when its biggest investor, Etihad Airways Group, withdrew.

B. The German government gave Air Berlin a loan of 150 million euros to keep it afloat until it found purchasers for the majority of its assets, but this strategy failed because of the tumultuous nature of the takeover negotiations.

C. The previous boss of Lufthansa, Winkelmann, began working for Air Berlin in February 2017 with a set gross pay of 950 000 annually, plus a variable bonus and additional income; the minimum wage totals 4,5 million.

D. According to the airline's website, all customers who purchased tickets both before and after they filed for bankruptcy will receive a refund.

E. The compensation committee for Air Berlin allegedly pulled out a cunning ruse in 2016 "because to the unusual and unforeseen circumstances." "To preserve payment commitments, a non-returnable bank guarantee in the amount of up to 4,5 million was granted in behalf of Mr. Winkelmann."