Late No Delivery - Blaming bank

I placed an order on Wed 25th of November 2015 for delivery on order no *** and *** for 10:00 to 11:00 and other 12:00 to 13:00 amounting to R3,072 and R9,484.43. Saturday I phoned call centre when I realised delivery is late, first get told problem with my payment after I say that I used payu and got a confirmation email as follows Hello S,You have completed a payment of R9,966.34 to Pick n Pay on 25 November 2015 09:41:11 on both transactions. We then get an email to say delivery is late but will still get delivered. I then get a phone call from call centre apologizing and saying delivery will still happen... which it did not. Then this morning again a phone call from the call centre to say they will deliver today. Not long after that I get an email on both orders saying that delivery could not take place as there is an error with payment? I should replace order... I then phone call centre to say that now delivery fees are charged and obviously the specials are not in time of new delivery date and they say nothing can be done? This smells like a rat.. Store had a glitch and now conveniently it is a bank error, and I have made plenty of pmts with same payu before?