Snelling series

I know what you mean about going into the middle of a series, Jo.  I have read the first three books in that series, then ordered the next three.  No. 5 and 6 came within a few days but No. 4 never arrived and it has been three weeks.  My Master Card was charged right away.  I’ve never had that trouble with Amazon before.  When I complained, they just said it was sent out September 24 - “give it a a couple more days”.  Then what?