Cash App complaint: Error in closing account

Hello my name is Dnorash southwich cruz … Ive had cash app for about 2 years n this is the first complaint I’ve had
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I recently received a payment of 300 … I purchased gifts from Walmart and some of the items needed to be returned due to not the correct size for my son …… ive never had an issue with getting a refund before and today im not sure what happened but cash app closed my account for unauthorized transaction meaning fraudulent activity but I was NEVER notified about this unauthorized transaction they simply closed my account and will not explained why I’ve called and of course you can not talk to anyone on the phone but I’ve sent emails stating that I can prove my identity im not sure what’s going on but this is not an error on my end this is clearly an error on cash app end I’ve never had an issue with getting a refund to my cash app and now I’ve lost out on 30 dollar refund from Walmart please someone call me to rectify this issue I love cash app because it is very convenient n easy to use