insurance i am not aware of

my experiance at Jet York Road Mthatha i recently opened an account at Jet Retail store,and ,made me sign on an electronic signature more than once, i was informed by the lady that opened the account for me that i will recieve a call about insurance from the call centre. i did receiev a call a few days later , from the Jet Call Centre, i told the guy that called me that i am not interested. thereafter i noticed additional charges on my account . i went to the store at York Road Mthatha to enquire.. and they told me i have 3 insurances that i did NOT sign up for. 1) Personal Funeral 2)Family 3) Account Funeral i keep getting sent from the store to the call centre.. one is pointing fingers at the other with no actual help or answers all i want is a refund of 3 months deductions.. but they dont want to give me a refund form. i have been dealing with this for 3 months now. i am frustrated..