Horrid Service v.2

So 8 days after my early settlement they finally manage to allocate the payment to my account. but then the debit order still goes off, which is fine as long as they refund it, and so they did but R80 less for charges because my payment was only allocated 8 days after I actually paid. With all the proof in hand and having contacted them numerously via call and email and no one is accepting any sort of responsibility. I contacted them EVERYDAY during those 8 days and no one could do a thing?! Very unhappy.