R-delta: Used aircraft paid for, but not delivered

• I received this message:

"You have purchased the following aircraft for $468,795,643 (inl. commision):

• Aircraft ID #5797: Boeing 747-400M (Age: 6 years, Value: $137,662,814.52)
• Aircraft ID #11727: Boeing 747-400M (Age: 5 years, Value: $137,662,814.52)
• Aircraft ID #40200: Boeing 747-400M (Age: 2 years, Value: $171,146,412.00)"

But #11727 was not delivered.