Originally Posted by
channa
Change Fees -- CO's systems charge change fees as new money, whereas UA debits change fees from the ticket value (e.g., a $500 ticket on UA with a $150 change fee changed to a $350 ticket will be $0 out of pocket; on CO it would be $150 out of pocket and leave you with a $150 residual voucher).
This is not a technology limitation or related to SHARES. CO's system previously worked as you describe for United. Thus it is a
Policy decision (and not a customer friendly one).