North Carolina is in the process of filing suit. They, too, advised to write Dilbert of your intention to stop payment, IF you have paid them back an amount covering the initial loan. Then notify your bank to stop payment...You WILL be continually called afterward, though....

They call constantly multiple times, multiple numbers, never leaving a message

Dilbert Services aka CashCall aka Western Sky Loans.  Many states have successfully sued Western Sky for their business practices, and terminated further business in those states.  Some internet postings appear to indicate these are all the same company operating under the various names, and calls from them come from numerous states caller ID?s (likely spoofed).  In Oregon the State Atty Gen?l Office and the Consumer Protection Dept successfully sued them earlier this year, but even after paying back the requisite original amount received they continue to call constantly.  In my case these are logged by my phones and being reported to the Atty Gen?ls office for further actions.  Also upon first call received it was clear this collection attempt was disputed by me and they continue to call daily, multiple times.  I was advised that this may be in breach of Federal Law requiring them to send supporting documentation and contact me no further for 30 days.  These folks appear to be a class act that cannot understand English, have no respect for State laws, and now possibly Federal laws.  Log and report everything to your local officials if they too continue to hassle you after paying back the original amount received (which is what I was advised to do in Oregon at least).

Received a call from this number on 27 November...no name...no messge left.