Horrible service

I have a Mobimoney account with finchoice which I paid up last year in November. I requested they close my account and refund me the excess amount that was paid in that account, until now I am not assisted by finchoice instead the agent keep telling me that they will call me back because there is a system issue. I don't understand that even now finchoice cannot resolve their system issues. I previously wrote a review on this platform and finchoice responded that they will call me back but they never did. This is dismal to say the least.