Was renting and the landlord refuses to give back all of my security deposit

Assuming you did not break any of the rules, and deserve it back you should sue them in small claims court.

You can report them, but if you want your money you need to sue them

Take the landlord to small claims court.

BBB is not where you want to be. Like the other posts, you need to sue in small claims court. Who checks with BBB before they rent, your LL could care less about BBB