After enthusiastically making sales pitches to my mother and I, I settled the payment for installation on the 17th of March, with them promising installation to take place 7 days after payment

After enthusiastically making sales pitches to my mother and I, I settled the payment for installation on the 17th of March, with them promising installation to take place 7 days after payment. It is now 13 April, and every communication between now and then, has been either ignored or weak attempts at excuses. I still haven't received my refund from these people. There are other people in our community going through the same issue. DO NOT TRUST THEM. DO NOT USE THEIR SERVICES!