United is not claiming that the reason for the ban is an increase in refund requests. Nor would they have to provide a full refund in any event, unless the ticket permitted, in which case they have little cause for complaint.
It is one of the reasons they gave.
> actions taken by these tools may result in unintended purchases, account changes, or use of MileagePlus miles
It is one of the reasons they gave.
> actions taken by these tools may result in unintended purchases, account changes, or use of MileagePlus miles