PayCity Customer service dissatisfaction

On the 9th of October i made a payment online for my traffic fines using the paycity service. Now when i was making the payment i accidentally made a payment twice. I have been in contact with paycity via their email but to date i still havent received my refund. I have given them all the neccessary documents they asked for and my banking details. The way they are taking forever to refund me i will never use their service again!!!