@Æarth I’m sorry to hear about this. Merchant account holds/freezes/reviews are triggered for a number of reasons. All card processing companies like Square have review teams whose task it is to be sure that any suspicious activity (NOT necessarily on your part) can be investigated and resolved. Square’s systems might have noticed something, VISA/Mastercard might have, a bank or card issuer might have, one of your customers might have initiated an inquiry, etc. At this point, unfortunately, all you can do is wait while Square finishes what is required of it by law and by regulation.
Here’s a link to an informative article on some of the reasons that merchant accounts are often flagged and investigated. Also, here’s a link to Square’s FAQ on the subject. Beyond that, only Square’s customer service team can give you the information you need, and they may not be able to just yet.
I hope you find resolution soon.
