Grand Arena Cheater - Impossible Rooster

Product: Star Wars: Galaxy of Heroes
Platform:Android Phone
What type of device are you experiencing the issue with? Samsung S8
OS Version 8
Ally Code: (Find it here: http://bit.ly/AllyCode ) 341-259-792
What type of issue do you have? Other
How often does the bug occur? Every time (100%)
Summarize your bug Cheater in my Grand Arena matchup - impossible rooster
Steps: How can we find the bug ourselves? Hello there, I have been matched up with a player with impossible rooster. He has Zetas on characters he should not have been able to unlock. For example he has a 7* Thrawn with almost no Phoenix characters leveled up. His ally code is: 478-666-438 , nickname: Badabing My GA matchups are under 1M GP , so somehow he cheated his way in...There is no way to fight against that kind of rooster and the fight starts in under 24h ☹️
Connection Type Mobile
Please select your region Europe
Country Croatia

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Here is the cheaters Inventory. You can clearly see its impossible he unlocked certain characters: