The transfer, and the second explanation
Every handoff asks the customer to tell the story again, and the story gets worse each time.
Being transferred is the most reliable way to make a person feel they are not being dealt with. It sends them backwards. Whatever ground was covered is now lost, the queue resets, and the new conversation begins with the same opening question as the last one. If context does not travel with the transfer, the customer becomes the transport mechanism, carrying their own case history from one person to the next and growing wearier with each retelling.
The retelling degrades too. By the third version a person is compressing, skipping detail and leading with frustration rather than facts, which makes accurate diagnosis harder for the very person now trying to help. Transfers therefore damage both sides: the customer loses patience and the organisation loses information. It is a rare arrangement where everyone ends up worse off, and it is completely normal.
Reducing transfers is partly a resolution question, which means giving the first person the knowledge, access and permission to finish the job. Where a transfer really is necessary, the minimum decent standard is that the receiving person is briefed before the customer speaks, and that the customer is told who they are going to and why. Warm handovers cost seconds. Cold ones cost the whole conversation, and sometimes the relationship.