I lost 1,000 Gems in my star wars Galaxy of Heroes when going to buy a data pack

[Pokemon374]

Product: Star Wars: Galaxy of Heroes
Platform:Apple iPod
What type of device are you experiencing the issue with? Ipod
OS Version Ios 11
Ally Code: (Find it here: http://bit.ly/AllyCode )
What type of issue do you have? Missing Rewards
How often does the bug occur? Rarely (0% - 9%)
Summarize your bug I was going to go buy a data pack from the store for 350 gems and i had like 1,000 or so cant remember the exact amount and it left me with 12, i need my gens back
Steps: How can we find the bug ourselves? I do not know how
Connection Type Wifi
Please select your region North America
Country Canada

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Thank you