I used Square before. They work good but they blocked my account after 4 months because most of my transactions were from prepaid visa cards so they said they blocked my account for the unusual volume in prepaid visa cards used and i guess it was against there policy. when they blocked my account i had pending $1k deposit but they stopped it and said they would keep the funds for 180 days and either i wait or refund the transactions. I lost $1k but i made a lot more in the process so i dont care much for $1k hehe
If you got any other questions let me know. btw i wouldnt charge dumps or cvv near your home location or town, i didnt. and i used a carded android phone with no service and a new gmail account so there was no trackback and also used open wifi's in the city i was in because the phone had no active service.
once my square account got flagged i ditched that email and threw away the phone too just in case they got some type of unique code thats for every phone if people try to login to multiple square accounts from one handheld device (like a mac address).
hope this helps bro. i already started up a new square account and gonna try doing what i was doing again, if not ill just find a different mobile payment service and use them