Not only will they not return my Core charge, they will not answer the phone or return calls after you have left messages. The mechanic that installed my engine was trying to purchase another engine and was also unable to get them to answer or call back, as with the bank that cannot get them to answer anymore. It certainly does look like these guys are crooks. It will do you no good to call them or leave messages, unless you are trying to build your Court case. I say, take them to Court, make their lives as miserable as they have for those of us that trusted them. Do not trust them.