Cash App complaint: Fraud through and cash app email

Good Evening,
My name is Richelle Coles and my cash app username is $HairRoLogy. I am reaching out with great urgency as I strongly believe I am a victim of a wire fraud scam.
A friend of mine tried to send me money in the amount of $3,000. He sent a screen shot showing that it was sent; however, I received an email coming from a cash app url stating that this transaction was placed in a pending status due to the amount being a large amount. The email instructed me that I needed to upgrade my account services in order to receive this amount. A request was sent to me with instructions on the amount I needed to send in order to upgrade my account and have the hold released.
I’ve never received a deposit in this amount via cash app in one transaction, so I was not aware of any rules or regulations pertaining to any statutes of limitations and considering the instructions and email came from a Cash App Url I thought this was legitimate. The amount I was requested to send was 3 transactions in total of $800. After sending, I realized the $3,000 was not sent to my account as of yet so I attempted to request a refund for the three transactions, and they were declined.
This is a huge amount to lose as you can see and my livelihood. This was all that I had left to my name for me and my kids which has placed me in a serious bind especially with having limited income due to COVID 19. Can someone from the fraud department or a supervisor please contact me and assist me as soon as possible to help get this resolved and my funds returned? I can provide copies and screenshots of all transactions and emails to prove and this scenario and to further assist in any investigating that needs to take place. Can you also advise any and all next steps that needs to take place on my behalf to prevent this from happening as well as reporting the fraud cash app account that contacted me? I am not tech savvy and not familiar with this process nor have I ever experienced something so horrific ever. Please contact me as soon as you can to help get this issue resolved. Cash app is refusing my complaint.

Thanks in advance for your consideration!
Richelle Coles