Incorrect course registered for.

I have dealt with an advisor Love more, I mentioned that I want to register for N4 Human resources management and he sent me the banking details saying I must pay registration fee before the 22nd December n I did so thn later I made another payment so I can get my first book when I logged on my student portal it shows I'm registered for N4 financial management, so I called so many times thy referred me around circles and saying the advisor Love more is on leave, I can understand that it might be an error that he registered me incorrectly and his service was great but now thy making it like it's my fault I chatted on Whatsapp with them thy said I must motivate y I wanna change course n I must fill out forms which I refuse to because it's not my fault I'm fault, I got a SMS that my books will be delivered in 8 working days so that means thy will also deliver the incorrect books... I need this sorted out before this week ends I'm new to them but this is how they treat me. They keep sending me from pillar to post, I can't wait for lovemore to come from leave the others needs to take responsibility.