It's not the first time I have used the WhatsApp option

It's not the first time I have used the WhatsApp option. It's almost never a good experience, and today, was no exception. Sometimes no answer, takes long to answer, but the lack of knowledge is the worse for me. I had a chat just now. I decided not to use the agent's name. I had a question, in my opinion, it should have been easy to reply. The chat dragged. And no straight answer. I stayed very polite, very patient, tried some humour, and in the end, I was forwarded the exact same correspondence I already have, that I had the enquiry about. I was still chatting, when I got a brush off, and my reference number, which means that the chat is over. I did send a message informing the agent I will place a review, and suddenly I received an answer. It must have been from someone else, as I received a new reference number. I am however, still reviewing, as it is still not acceptable. Train your agents about customer service. Do better.