Pick 'n Pay ASAP

I suggest if ordering groceries through on-line ASAP Pick 'n Pay to think carefully. I've ordered through them many times. However, on Thursday I ordered a few items which included 6 cartons of 6 x 1L boxes of milk in each box. The delivery took over 2 hours to arrive despite the adverti*****t of 60 minutes. When received all the cartons of milk were not delivered but my invoice included the milk amounting to R509.94 which was debited to my banking account. This was queried to the despatch point and no response received. ASAP help desk took 3 days to reply and don't understand my query. I gave the invoice number etc. in my first query but get asked for this?? I responded pointing out the problem to which I get a response that my banking account will be refunded for 1 x 1 Litre box of milk. What about the other 35 1L boxes?? How does this person at ASAP sort out any customer queries/complaints? I have their name. Pick 'n Pay service is deteriorating in other ways as well. I mention I have also used Sixty60 and what superb service I get. Only once I had one item missing and the problem was resolved within 2 hours. Sixty60 service is 110% but ASAP Pick 'n Pay ...... Hopefully at some stage ASAP Pick 'n Pay will sort out my complaint so I receive the missing goods or refund without having to take legal steps.