refuse to settle the account

my partner is on the maternity programme, she is entitled to see gynaecologist twice, then she did consult twice as its indicated, but now the Dr said that there is outstanding amount that must be paid by me, I tried to call the gems call centre, their consultants are not helping me, I have been on the call for almost an hour but no help, then I had to hang up because they kept saying please hold, please hold, please hold. please help me on this issue, they must pay the consultation for September and October 2015. the Dr was S Bilankulu.