Spar App disappointing

Placed an order at 9am for delivery 11-12 from Spar the wedge, by 13:00 nothing had come of my 3 calls to customer care and 1 call to head office which was cut by them as I was explaining the issue and so I had to Uber to the store where my order had not even been packed, they apologized and scurried to get my order, simply saying there's a backlog, yes I got my order but it cost me R100 extra taking an Uber there and back. DONT RUN ONE DAY ONLY ONLINE ONLY SPECIALS IF YOU ARENT EQUIPPED TO MEET THE DEMADE TIMEOUSLY!! VERY disappointed to say the least as I basically saved nothing and wasted my entire lunch break sorting this out. Will not make use of the 2U app again