Policy Cancelation

Good day!<br> Last May I have changed the premiun debit to a new bank account. It has been proceed and aknowleddge by the customer service and by email.<br> Yesterday i have received a SMS saying the policy was cancelled due to non payment.<br> I have checked all bank details given and it is correct.<br> I have called Hollard and I have been informed that my policy has been cancelled and it is not possible to reactivate this and I have to buy a new insurance ZAR 300 more expensive.<br> For sure there is a way to reactive this policy considering that the non payment is because a error in processing the debit into my bank account.<br> For me it sounds that Hollard wants to take advantage of the situation to increase my premiun and not want to help me to activate the current policy.