Mislead the uneducated people

I went to Edgars and buy few things. When am at till I was offered to open an account which I politely refused. After I refused it, the tell did what she did which I believe was to open the account even after I told her I was not interested. Then asked me to sign this electronic signature pad. It puzzled me what would I be signing for and read the terms. I then asked her to explain what I was signing for, she told me am signing to say am not taking account, which was the total opposite of what the t&c was saying. I stated that I am agreeing and wish to apply for Edgars account. I mean for heaven sake how many people does she mislead on daily basis??? I wish I had taken her to her manager but was to angry to stand her ********* behavior & just left the shop.