978-631-4161

Just called my cell, did not leave a message.

they called my cell phone and house at 3 am this morning but didnt leave a message

Someone named Rob from a Moalt (or something that sounds like that) Law Group. Said there was some case against me, but would not leave any details.

Called twice. Once at 3am I did not answer no message.  Second call was  automated voice telling me too press 1 to reactivate my Mastercard. I hung up. I do not have a mastercard.  That sounds like a scam that has been going around attempting to get credit card info for criminal purposes.

You could have given them fake card numbers.

Called at 9 am, I answered and it was a recorded male voice saying he was from some law firm and to press 1 now for a very important call.  I hung up.

This is the Mireault Law Group.  They are a debt collection agency in Cambridge, MA.  They are making robocalls; there is no human involved.  They purchase dubious debts and try to use their muscle as a "law firm" to intimidate people to cough up money, whether it is legitimate or not.  Do not respond to these crooks -- they have no ethics whatsoever.  Eventually, they will give up and move on to greener pastures.