Good day, I want to lodge a complaint against Takealot

Good day, I want to lodge a complaint against Takealot. I paid for an order yesterday 01/04/2025, I choose the GUARANTEED EXPRESS delivery (R75 extra!) which said on the checkout that I will receive the parcel on 02/04/2025 - which is today. So this morning when I checked on the tracking my parcel was only SHIPPED at 21:00 last night! This is such poor service! I had to pay extra for the guaranteed express and now I am just getting the normal "free" delivery service from takealot! This is unacceptable because I feel they are making use of false advertising to get more money out of their customers. It is NOT my problem that the parcel was only shipped at 21:00 - Takealot should've escalated the shipping as it was scheduled for delivery TODAY!