Spar 2U headaches

Spar2U Please spend some of the billions you make and have a decent working app made. Its the worst app ever, order from Sixty60 and never have a problem, order from Pick n Pay never a problem, but with Spar there is ALWAYS something wrong, either essential items shown in stock gets taken off the order without notification before paying. This forces a person to pay for yet another delivery, making me also wonder if this is perhaps a clever ploy to make millions more out of South Africans from unnecessary delivery charges. When it comes to payment more problems arise, you first have to open your banking app to approve the payment then once done your app is closed and hence the transaction is closed forcing a person to redo the whole checkout process again where this never happens on other apps as once we click pay, its paid.