Poor service and neglectance

We bought a Duplex in March 2022 where Ooba bond insure send us a quote to insure our home loan from Standardbank in February,, we notified them via mail that we recieved a better deal from the bank itself, so we declined the quote from Ooba, at the end of the month the unit was registrated on our name Ooba started to deducted money from my account without my authorization, i only relized this after the 3rd payment, i don't recieve any SMS messages from the bank, i have send Ooba a mail to query this and the only answer i get from them is they will look into the matter, i didn't recieved a policy or statement from Ooba for this payments