Cash App complaint: Scammed on this app

Mother in law received an amount of $600 from somebody and cash app told her that she had to get $250 for them to change her account to business. Once she received this money from the person, cash app told her that she needed to purchase an Ebay gift card of $100 and they will send her a refund after they had verified that the card was valid.
The gift card transaction was valid when she purchased it at Dollar General. She had sent the gift card number and the receipt to this so called representative through email for them to verify that it was valid. They told her that the gift card was invalid and that she had to purchase an Amazon gift card of $100.When she told them she was not going to make that additional purchase because the Ebay gift card was valid since her purchase was accepted in Dollar General, she did not receive an email back at all about this situation. Which is ridiculous.
Additionally, she spoke to two people who considered themselves as Cash app representatives. The first person was rude to the point where he got upset at the fact that my mother in law did not want to give him personal information that Cash App states in their Terms of Service that representatives do not ask for. The second person stated that they were a so-called representative for cash app and explained to her that they were not a scammer. They tried to send a transaction of $1.00 to her bank account and when she told them it did not work, they told her to stay on the line and hung up.
It’s ridiculous that there is no way in hell to contact this damn support group. Especially the fact that her account was changed to a business account now but the money transaction is still in pending.