You pay for 4 sets of special pull tab mold fees, and you also agree to pay the mold fee to let us produce the sample to you, but there is a MOQ for the bulk order, I have consulted you about the quantity, you said that you are not sure, need' receive the sample and then do confirmation, we agree that you pay the mold fee to produce the sample for you, and the sample has been delivered to you. It's just that in the end, we are so sorry your actual order quantity is 50-100pcs for one , which is far lower than the normal MOQ. we told you cant do that order,you threatened us with bad review if we dont refund your the mold fee