Appalling online shopping experience

Appalling service experienced with Decathlon Alberton, Decathlon Centurion, and the Decathlon Customer Satisfaction Department. I placed an order online that showed that I could collect my product within 1 day of payment. I paid for my order online, made arrangements for it to be collected the next day at the Centurion branch (which still shows the product as AVAILABLE for collection right now). I then received a call late in the afternoon from the Alberton branch to tell me that I should instead collect from their branch and not from Centurion.

You would think the person would have at least offered an apology, but no. I had to book a 2nd collection at the Alberton branch at my cost since it was already too late to cancel the original one. Today (collection day), I received an email stating that I need to wait for 48hrs to use the click and collect service, contrary to the confirmed time clearly shown for my product (1 day, with availability in Centurion) - And this email came from the Customer Satisfaction Department. Upon explaining the problem, they didn't bother to apologise for their lack of proper stock control and the inconvenience of asking me to fetch the order from a branch that is not nearly close to Centurion. On top of everything, they don't even know how long their click & collect service should take - They tried to blame me for their lack of order. Decathlon is not ready to offer a seamless online shopping experience.