Take your money by mistake but won't return or take responsibility for it.

I did not have enough funds for my Discovery medical aid stop order for Novemeber. I managed to pay this amount on the 22nd of November 2017. I emailed them and received an acknowledgement and my services were reinstated. This month they deducted double the amount. I phoned the call centre and got a run around even though I gave reference numbers etc. I was told this money could only be paid by the 8th November. The assistant was Mola Gonya. He took 15 minutes to transfer me to a supervisor. Vusi gave me a further run around! Saying I must send them bank statements etc!! Why must I do their work? Next year I am leaving Discovery, enough is enough! There are other stop orders on my account which will not be paid this month due to the incompetence of Discovery yet Mola says they are not responsible for these amounts? So if I take your money and only give it back to you after 7 days it's okay? Discovery are disgusting!