ZERO UNDERSTANDING/CUSTOMER SERVICE from Lendplus

I have been a loyal client with a great repayment record until recently. The debit order date somehow in the loan agreement was set for a week before my salary date (I have recently changed jobs). I emailed them several times to explain the situation and NOT ONCE did I get a reply. I, of course, understood that interest would be added, etc. When payday arrived, the debit order went off, but there was an outstanding amount of R55.42 which I paid twice because my account kept on showing this outstanding amount. I again emailed them to ask for a refund but NO ONE rep****. I have also since been declined for another loan? Is this how Lendplus treat their clients? If I don't get an apology, my refund and a chance to apply for another loan, consider me an disgruntled ex-client.