Poor Service

I lodged a complaint on 14/3/2016 regarding the membership of my son, I was called by a lady from the customer service resolution department on 15/3/2016 to find out more about my problem. I explained everything to her and she promised to get back to me before 16:00 on 15/3/2016, I am still waiting for her call. This is pathetic service and am failing to understand why she has not called back. Please guys cancel my son's membership and refund me my February payment, I do not want to be told that I will have to pay a cancelling fee as my son turned 18 like I explained before. I cannot be forced to continue to pay for something that I do not want, it was never explained when I took membership for him that when he turns 18 I will be forced to continue with his membership. I was told that he will no longer enjoy the benefit and if I want him to continue I will have to pay the joining fee. I am very unhappy with the way you guys handled this, the lady that called is so so unprofessional and please I refuse to be helped by her going forward.