Conned by a sales agent

My 10 year old son swims at virgin active for 3 months of the year (during winter). I activated my Momentum multiply and requested 3 months access from the sales agent, Zama from Richards Bay. She was well aware that I needed it for swimming ONLY (I do not use a gym and we live far out of town). She reassured me that this was not a contract on numerous occasions. In July I asked her to cancel it (as I was told by her that I must give a months notice) for end of August. This was not done and she blatantly ignored me from this point on. I then submitted a request via email twice and online twice to no avail. In September the harassment starts - head office demanding money. I put a complaint in to Virgin Active Richards Bay and received no feedback. After yet another harassing call for money I send a further email to both Gugu and Kyle. Well blow me over .. the response was quite simply put ‘we have spoken to Zama and found nothing wrong’. In simple language ‘we find you out to be a ****’. This all done without even a consultation with me. Be warned - you will be conned by the sales agents in Richards Bay - they just want your money and once they’ve got you they treat you, the client, as a ****.