"Antoñio" wrote in message
oups.com...
How could I have done that in this case?

You could ask the Class D controller to obtain a clearance for you, though
given how busy you say the airport was at that time, I doubt he would have.
You could have contacted the Class B approach controller yourself to obtain
the clearance.

The fact that neither of those methods would have been very practical at
that point in time is immaterial. They still remain the only options for
obtaining the required clearance.

However, the question is moot, since you did not need to enter the Class B
airspace, and thus did not need to obtain a clearance to do so.

Pete