Unhappy

My husband app**** for a mr price account the beginning of December he was then offered insurance which he than accepted at the time, however when he received his policy copies via email he was also advised that in the 1st 30 days he can cancel the policies which he ended up doing via the cancelation email address as well as on the Mr price live chat option on the app. Not once since the account was approved has my husband made and purchases on the account however there is a installment generated for R307.40 which is for insurance options which he requested to be cancelled. I am so not happy with this and would like the R307.40 to be credited back to the account as we requested for cancelation of the policies on the account and don't see that we are liable for this balance owing on the account as he didn't make any purchases on the account yet.