Bad service

I am really really disappointed the way i was treated at pick and pay jean avenue yesterday. I did online shopping and booked a appointment for 12 o'clock till 13H00 and only to find out when i arrived at the store to collect the order they told me they are still waiting for the milk they did not have any stock so i needed to wait after i left the store and come back just to find out that they also do not have the cold drinks i have order. I made two order online i phone the branch in fearie glen to ask if they just can change my order so i can collect all of the order together as they told me to phone the online to assist jus to find out the lady i spoke to told me her manager said they can not do that i phoned again the branch and gerald said he will call me back so i left my office at work and i still did not receive a call . I went to jean avenue branch and ask the lady to call gerald to make sure that i can also collect the order there so when i arrived back at the store where i needed to wait for milk i was told we need to phone gerald after phoning the branch and his cellphone number there was no respons meantime i left the store after 14H00 where in needed to wait. I said just leave it i will go and collect the staff at fearie glen but just to notice my collection time was at 14H00 at fearie glen i just feel as a customer i have take time off at work to collect and why could they just not change collection site to jean when i asked them now i need to drive all the way to fearie glen for 4 cases of beer