Debit processed without Debicheck mandate

I wish to alert consumers to the ******* practices of Safebase. I received a WhatsApp from OnAirTV about their services. I clicked on more information and they immediately started sending me WhatsApp messages welcoming me to Safebase. Furthermore, they mentioned that I should look out for a Debicheck mandate. I responded to the message saying that I was not interested numerous times with no response. It seems like their WhatsApp bot doesn’t receive messages. The company proceeded to debit my bank account WITHOUT a Debicheck mandate. This is ******* and I would like to warn consumers out there about this company