pathetic servic from pick n pay montclair!!!

I went shopping with my mother who's a disability pensioner on the 3-03-15 at pick n pay montclair 1stly there was no fresh chips in there deli and when we asked the lady behind the counter why we were told there's no chips. No explanation nothing. Then they have a special at the till for any 4 cadbury chocolates excluding king size for R20 we took 2 tempos, 1 crunchie and 1 astros it rang up to more then 20 when u tell them its false advertising to call the supervisor when the supervisor comes she says the special is only for ps chocolates then the manager comes she's got a bad attitude she says in there pamphlet it states ps only so I take the notice off the shelf by the chocolates she tells me she will give it to me for the price of R20 but not again. And she's tired of this cadburys problem. THE ATTITUDE OF THE STAFF STINKS AND EITHER THEY JACK THERE SERVICE UP OR WE WILL TAKE OUR MONEY ELSE WHERE