Bad service and utterly disrespectful staff

I received the most disappointing and unacceptable service ever. I made an order of 338 items for a school (comprising of mugs, shirts, cooler bags, keyrings) on the 2nd week of December 2021(for the deadline of 22 December 2021,because I needed the stuff 1st week of January and gift Wrap won't be open by then) . Received a quotation etc, Then on the 14th before making a payment I clearly asked if the stuff will be ready they agreed, I proceed with the payment and I was told to await an email to approve artwork. I Sheryl-Ann gave my email address and proceeded to confirm the address using whatsapp. I received no communication whatsoever since then. I decided to call on the 21st December 2021 in the morning, to follow up on the order, only to be told that the order is not ready because I didn't approve artwork (of which the email was not sent to me by a lady named Sherly-Ann). She was so rude when handling my grievances. The matter was then forwarded to the manager Benje du Toit who was utterly disrespectful and so rude talking over me, not even listening, cutting me short and hanging up my phone calls! I ended up just requesting to have no printing on the stuff and make another plan in terms of printing just so that I could deliver to my clients on time. How can a company operate with such rude staff! Isn't customer satisfaction put first in this company? Never in life have I received such bad customer treatment! I definitely regret doing business with them, I don't recommend it at all! Poor poor service and poor poor behavior from staff