This is unacceptable

I bought a Silvercrest S-18 7 in 1 Airfryer as a birthday present for my wife the package was delivered 4 days later. When we tried testing the newest edition to our household the device was an out of box failure not displaying any signs of power we immediately logged a return on the app and took the device back to the collection depot. When I handed the device over to the consultant he advised that for fault finding it takes 7 to 14 days in order to assess the return. This is unacceptable as when you do a purchase we paid immediately and now for a return we have to wait 2 weeks in order for it to be assessed as where other retailers will handle returns immediately