Looking for some help with what I thought would be a pretty straightforward case, but apparently might not be. An exasperated CSR just resolved an FFC issue by combining a few of them into one big ETC for approximately $1,000. Unfortunately, the earliest of those had a 18JAN25 expiration - no big deal in isolation since it was less than $100 but being the earliest that was assigned as the book by date for all $1,000 on the ETC. Already talked with that CSR (and another, and a supervisor...) about having that extended but have hit a wall.

In the past I would've just made a booking, cancelled after 24 hours, and taken the new expiration date - but reading here and elsewhere it doesn't seem like it's that simple now. Are there any foolproof (or near foolproof) methods for securing an ETC extension anymore?