We didn't receive any complaints about the wrong shipments by message or email yet. Could you be kind to tell me if you bought the modules from Tindie? The products here are all originated from DORJI directly. There are a lot of sellers in Ebay or Aliexpress who sell the fake parts. In other words, they advertised the keyword of DRF1278F but the pictures of the products are marked with other part names. I am looking forward to your further opinion soon.
I have not received invoice with the product. I need to submit it in my office. The link provided by Tindie for PDF invoice is also not working. Kindly provide the invoice as soon as possible. Also hard copy of the invoice should also be provided with the product.