So lightning never strikes twice?

A couple of weeks ago I bought two jigsaw puzzles from Bargain Books (Whale Coast Mall). Both appeared to be in good condition, but on attempting to complete the first my wife and I found one piece missing and duly took the puzzle back to the shop for a refund, which I obtained in the form of a credit note. Fair enough. This week we started on the second puzzle and quickly discovered an edge piece was missing. On counting the pieces (several times) we unsurprisingly came up with a figure of 1007 instead of the expected 1008. So, back to Bargain Books, where the manageress initially refused to contemplate any refund and then accused me of being abrasive - presumably for insisting on my rights as the purchaser of defective goods. Quite clearly she was practised at this sort of discussion. Now, I agree that two jigsaw puzzles, each being short of one piece, is quite extraordinary to the point of being - yes, incredible. Indeed, in my fairly long life I have never before experienced even one such instance - but that doesn't excuse the refusal to recompense me now it has happened, nor the implication that I am a ****. To cut a long story short I was eventually issued with a credit note and a barbed and (needless to say) entirely superfluous hint that I shouldn't think of purchasing a jigsaw puzzle at Bargain Books again. As an aside, I did mention to the lady at some stage that Bargain Books was going to get either a positive or negative mention on Hellopeter, depending on the outcome of our "negotiation", whereupon she opined that it made no difference to her either way. So, five stars for the eventual realisation of my customer rights: one star for the unpleasant customer experience involved. Say - three.