Ignition Coil - 18-5192 - Sierra

I returned the 4 coils with the packaging not opened, on July 22, 2016. I requested a. Status of my credit via. E-mail, with no response. A month has gone by without a response other than your phone message saying we are inspecting the parts. The parts never came out of your packaging, what inspecting could you be doing. The customer service seems very poor with this company, relative to returning items. I will take my business elsewhere in the future. Joe Burcar