Absolutely the worst experience I've ever had with a payment processor.I signed up for Square to accept ACH payments from a customer. The platform let me create and send the invoice, and the customer submitted payment. Several days later, Square deactivated my account without any explanation. At first, they claimed the funds were never withdrawn — but days later, I received notice that the money was taken from my customer's account.Since then, I’ve been caught in a nightmare of customer support loops. I can’t issue a refund through the dashboard because my account is deactivated. Support repeatedly told me it was “being escalated” and that the funds would be returned to the customer in 2 business days — it's been over a week and nothing has happened. Every time I reach out, I’m transferred from one rep to another, and no one can provide a resolution or even basic follow-up.This company is clearly not equipped to handle legitimate business needs, especially when large amounts of money are involved. Absolutely unacceptable. I would strongly advise other small businesses to stay far away from Square.