Btk Concrete Construction

In May of 2016 we sign and gave BTK $1600.00 to construct a 2 to 3 foot retaining wall . After many phone calls and empty promises on start dates Mr. Bill Roesch, Owner told us on May of 2017 It would be best just to refund the money. As of now we have still not received our refund check. He told me it was in the mail June 30th , again by the week of the following week. Then again it was in the mail. Then yet again we were told he sent the money July 13th. But as of today we STILL have not received our money . I have wrote the BBB and to my knowledge BTK has not responded to them.