Double billed and deducted with Debit Order

In January my primary decoder stopped working. I went to the DSTV offices at N1 city to test the decoder, and was told that it needs to be replaced. I was then advised that I could get the Explora Ultra on the 24 month price lock option, which means my monthly installment would remain relatively the same (around R950).

The installer came to my house to setup the new Explora decoder in late January, and it was setup with my secondary decoder for Extraview. The old decoder is now useless and in my garage.

I was surprised to see a debit order deduction of R2,127 going off my bank account on 1 February. I've been on the DSTV application, and it seems as if they are charging me for 2 subscriptions. After 2 attempts trying to sort it out on their live chat, and 20 minutes on a phone call, I have not been able to get it resolved.

I don't understand how I can be charged 2 subscriptions when I have only the new decoder and the extraview decoder setup. I haven't been able to get answers, or a refund. There is no ways I'm paying R2,000 a month for DSTV, I'll dispute the debit orders if this continues.