Most Airlines do this, customer support is only allowed to repeat info from the site, or ask to fill in a form.
In that case just put a bot or GPT instead of humans suffering abuse from frustrated customers.
Here's a wild idea, maybe have real customer support? I'm sure a multi-billion dollar industry can afford to hire people to do actual support who can actually do things. Chatbots and outsourced support that can't do anything but read scripts is just a big "fuck you" to your customers.
It seems like customer service nowadays is just to wait the customer out. Mercari made me send 8 unique photos in order to get a return...wtf? Just waste their time and make them jump through as many hoops as possible I guess so that they give up. I feel like in a decade online retail returns will be the equivalent to cancelling gym memberships.