I do the same thing with many different companies. This doubling or tripling of calls probably makes UA say "We need to increase staff with lower labor cost CSRs! Forget training, we don't have time to train anyone, we need more people to answer the phones!!!!"

When in reality, a well trained CSR can handle most all situations in a few minutes without the need for multiple callbacks, and reducing the need for all those extra untrained people. Hopefully UA will figure this out soon.