Refund

I've updated my Bonitas plan to a better option and so I had to pay the outstanding fees for 2 month. I've paid the outstanding amount and then bonitas also deducted the same amount from my account. So basically I paid twice. I am unable to despute any transactions from Bonitas at my bank FNB. I've requested a refund and I am still waiting, it has been almost a month. This is such a big inconvenience.