Employment visa and labour ban

Hi, I was on a visit visa in Dubai in September 2016, I got a job and my employer applied for my employment visa in Oct 2016. When signing contract although I'm a real estate broker and that what is written in my offer letter as well, they put my visa under archives clerk as to avoid the cost of RERA certification.

Also, the company was telling me to sell financial products which I have no experience in, so I resigned and left for India as my tourist visa was about to expire, my previous company is not ready to cancel my visa.

Does this automatically put a 6 months ban on me and will it affect my ability to get a visit visa as my sister is based in Dubai? Please note that I have not entered UAE on their visa and it's expired on 17 Dec 2016.