Applied kyber LST were resetted

After completing Tier 2 of the Cassian Andor (Undercover) event one gets three Kyber LST. These LSTs should upgrade the toons to Relic 6 and ability class 7.
I applied them to characters (Mara Jade, Savage Oppress and I think Bo-Katan Kryze) that were listed as possible as they were on relic 5 or lower before. When I restarted the game again later on, the upgrades were “resetted” and all characters were on their previous relic level but the Kyber LSTs didn’t reappear as well. 
As the Tier 2 of the Cassian Andor (Undercover) Event is behind a paywall I demand to either get back the LSTs so I can apply them again or to reinstate my correct progress or to refund the money I had to invest to unlock 5* CA (Undercover). 
I hope to find a quick solution here as the “EA help” ingame seem to not understand what they’re doing and only provide answers to not-asked-questions…