You meant from Gehennas to Earthshaker right?
Tomorrow, Friday, 20 September at 1:00 a.m. CEST, we will open the following Free Character Moves for realms in this region:
FROM
TO
Ashbringer
Bloodfang
Ashbringer
Dragonfang
Ashbringer
Earthshaker
Ashbringer
Judgement
Dragon’s Call
Heartstriker
Dreadmist
Bloodfang
Dreadmist
Dragonfang
Dreadmist
Earthshaker
Dreadmist
Judgement
Firemaw
Bloodfang
Firemaw
Dragonfang
Firemaw
Earthshaker
Firemaw
Judgement
Flamelash
Bloodfang
Flamelash
Dragonfang
Flamelash
Earth…
You could try the advice here: WoW: Classic – Free Character Migrations about the missing shop icon.
Support cannot assist with modifying anything regards the FCM offer. Please keep watching the aforementioned thread for any info about the current FCM status.