Billed incorrectly and no debit order went off

So I signed up with you guys in last month, banking details and everything was filled in for debit order and I was advised the only fee I would be is the annual fee of R362 and the first 3 months with you would be free.

I received a bill this morning for R444.51, which confuses me as I have a debit order set up but no debit order went off, also why is it R444.51 when the agreement says R362?

I have no issues with paying the R362 and will do so now as agreed upon, however the balance will need to be refunded and also please ensure that you stick to the agreement terms on your end as I was promised 3 months free service, please get your admin sorted out and rectify this error