feeling kinda dumb

Ok - so there was this add on Craigslist for BG 2.0 diapers - 7 of them - but no inserts - for what I understood as $10 for all of them.  Great deal right?  Well I contacted the lady and she went through the trouble of finding out how much it would cost to ship them and everything and was just waiting for me to send the check.  It was about 5 bucks for shipping so she said $75 - well I had to send her an email back saying I was under the impression that it was 10 bucks for all of them.  Now I feel bad,  But I can get BG 3.0's brand new with inserts for $17.  *sigh*