Jawa Engineer feat refund

Good morning. I used era currency on a carbonite LST to get Jawa engineer unlocked since my account was started on May 5th to do the R5 feat. I used an ally JML and got the kills, but then it was changed to Jawa Scavenger (also not unlocked on a new acct). I would not have wasted precious currency on Jawa Engineer if not for the feat. Please refund my LST or better yet my 1k currency. Thank you for your consideration and response.