Originally Posted by
tev9999
I tried submitting a tracking request through the website but it kept having issues submitting it. I ended up trying Whatsapp and that worked. It took a half dozen messages back and forth over an hour or so, but the miles showed up in my account right away. I didn't have to pay the €70 fee either even though I'm not sure that the change from AF to DL metal justified a no charge cancellation for a lowly Explorer member.
I believe at least for a booking to/from the US, the DOT regulations require a free refund be offered if the operating carrier changes (this includes switches from mainline to regional, but would definitely cover a switch between AF and DL).