Phyliss if your in this group your block came back postage due of .40c so even though mail is metered if the other side does not like what your post office is letting something go for.. there can be a fee. So my advice for what its worth is if they say its on the fence of.. go with the next hire up. I don't mind the .40c but it can cause a lot of problems for carriers and recipients if it happens all the time. I am not hoping to irk my mail lady any day soon. This could be why when I have been sending blocks back they are all 1.09 to 1.19 each not the .67 c it cost to send a f8. thicker with seams heavier too and often with scraps back of the fabric.