money reversed out of my acc

my acc was moved over from Nashua to autopage in December 2014. In November I paid R280 into autopage by mistake instead of Nashua, I realized my mistake in December after been contacted by Nashua acc department that I was behind so I paid Nashua the R280.00 in December to clear my account and still paid autopage in December R280.00 and every month their after and I knew I would be in credit. In February autopage reverses the November payment to Nashua with out consulting or contacting me because they assumed that the payment in November was for Nashua because they only started billing me in December. after numerous call and emails to autopage to have the R280.00 brought back to my acc, no one has rep**** back to my email and the helpdesk can not do anything. I have been told to get the money from Nashua. not acceptable for I did not request or ask for the money to be reversed to Nashua, the responsible person that reversed my money should contact Nashua and get my money back. in my opinion this is *****