recharge bug

I recharged 6700 gold coins in the ea app today, but when I went online, I found that the game displayed 13,400 gold coins, which doubled. I checked that there was only one order in my order. Is this a bug on the client? I was worried that there was a problem with my account, and I gave feedback to the customer service in time. And I didn't use the extra 6,700 gold coins, but the customer service directly said that I did something and slandered me without factual basis and investigation. I was really angry. I hope ea can investigate clearly and help me solve it.