I attach some pictures of the SIM card I had issues with. The card got pretty much stuck and I had to use a tong to remove it. It is a cut down version of a regular sim card, which is the way how they issue sim cards here in Austria, so maybe the edges are no very exact to specification. But so far I have had no problem using the SIM card in iPhone and other phones. I do not have the unit at hand any more but I will do some more testing when I get the next batch.We are ready to make the next order. Could you please give me an update on the delivery date estimate for those mentioned extra 16 pcs of NCA-1515B? We would require the same configuration as the current batch.