PNA Watercrest mall, enemies of progress

PNA Watercrest is the worst shop ever!!! I had an order for a school where I had to supply 20 world atlas and English charts. I tried looking for these and could not find any shop that had them on stock since it was January. I then went to PNA watercrest where the manager promised to order these for me, this was on the 4th of January. I called the following Monday (the 7th of January) to confirm if the order was placed and I was assured that it had been placed. I waited a week without hearing from PNA and the following week on Tuesday (15th of January) I called the store and I was told that my order will arrive that week Thursday (the 17th). Thursday came and did not get any call from the store and I called that week Friday and I was told that the order had not arrived yet. So the following Tuesday (22nd January) I called again only to be told that the Atlases arrived a day before, and mind you I had not been notified of such. So I went the following day to pick them up and obviously the charts had not arrived.

Up to this day (the 3rd of February) I am yet to receive a call about the charts. The school's principal got angry last week and threatened to report me to the department, and that would be awful for my business. Why exactly did PNA promise to help if they know they are ***********???? Every time I call to ask about the order I get such stinky attitude from the staff including the one lady that is some type of supervisor(or whatever her title is)... You would swear I am calling to borrow money or something judging from the type of attitude I receive from this shop. I understand that they were doing me a favor by this but now they are jeopardizing my business with their stupid empty promises. And also even the staff members that have no idea about my order will still try to be smart asses and answer me about this when they don't know **** about anything!!! Can the store manager please train the ******** staff members to only answer what they know of... So basically I am in a verge of obtaining a negative publicity in my area of business due to PNA and it's "I don't care attitude" towards customers. They really don't wish small businesses any success at all and I don't encourage anyone who is serious abut growing their supply chain business to have anything to do with PNA coz it's trash.