Bad service received

I am rather upset by the service received today.

This supplier is the preferred supplier to a school my nephews attend, they failed to deliver 2 textbooks which is needed on a daily basis (it's a workbook) and only notified my brother on the day of delivery. My brother retaliated with a lot of frustration as my nephew wasn't ready for the first term of school. The dispute between my brother and Amanda doesn't actually involve me, what I am disappointed in was how I was treated after an ASSUMPTION was made.

I called Amanda Johnson & Co today asking them if they now have the stock of those textbooks (which I had to call in about 4 times, her assistant/staff was actually hesitant to speak to me as I assume Amanda said she'll handle it as her the lady said "I can't discuss this with you, Amanda will contact you herself") when I asked Amanda if she had stock she said "unfortunately I won't supply you" so I naturally asked "why?" and she said "because of the issue I had with your brother, I'm not going through that again" which I didn't appreciate because I spoke to her and her assistant/staff in a very cordial manner, never once did I bring up the issue that occurred with my nephew the only reference that was made to my nephew is when I told the lady which school and grade so that she can look up the textbooks I required, I took it on as a new sale to me. After entertaining her story/version with the failed delivery, I then asked her if she had stock and she said no and she doesn't know when she'll receive stock again. I wasted 15/20 mins of my time listening to something that had absolutely nothing to do with me (which is wrong because you can't assume surnames and become an open book with your customers) and based on the fact that she never dealt with me she already app**** prejudice when her assistant/staff left a message asking her to call me. I knew what happened with that order and still gave her the benefit of the doubt by calling to find out about the textbooks. I really did not appreciate the treatment received and now based on my own experience I will never recommend this company to anyone. Absolutely terrible! she made no attempt to apologize for judging me without even dealing with me and already discussed me with her staff, her staff made me feel as if I was banned from making a purchase without knowing who they're actually referring to. Quite disappointed with the narrow mindedness.