Unable to claim reward although I've completed the milestone

Product: Star Wars Battlefront II
Platform:PC
What is your issue related to? Challenges
Which part of it? Persistent
Summarize your bug I completed 26 multiplayer milestones but I can't claim the final reward
What is your gamertag/PSN ID/EA Account name?
How often does the bug occur? Every time (100%)
Can you tell us the date (MM/DD/YYYY) that you saw the bug?
What time did you see the bug? (HH:MM AM/PM)
In what game mode did the bug occur? Galactic Assault
What is your time zone?
Steps: How can we find the bug ourselves? don't know if it's common
What happens when the bug occurs? I can't complete the multiplayer milestones
What do you expect to see? Claim the final reward
Please select your region Europe
AMD or Nvidia Model Number

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