Just an other scam

Since Ive purchased this app and all the related app from this developer it has never worked properly, always an other update, always un other program to purchase and then surprise it still not work as it is supposed. I have contacted the customer support and they manage to blame it all on me, its again the same explanation "you do not have the right version and should purchase this one"
After all the money and time I have wasted on this I have erased it form my device. It does not work!

Seeduck about CLZ Barry - Barcode Scanner, v1.0.4