No patience and consultant do not explain everything to clients

I was assisted by Anton Jooste who is the Finance and Insurance Marketer on the 10th of May on Tuesday. May I say that there was little patience with the whole process, he never explained most of the things which resulted to the contract getting signed wrongly with the option that I did not want and here I am not knowing how to change it. He did not explain as the insurance marketer/finance consultant for Wesbank the difference between linked and fixed and did not even mention it to me during the time i was in for the contract only a month later I find out the option to my contract is the linked interest. I need someone to help me rectify this please.