Incorrect debit order processed by liberty twice

Received an sms in mid September off a debit order going off my account for a substantial amount of R2900 from liberty, i felt that very odd because i have no dealings with Liberty, i called liberty on the 12/09/2018 and spoke to Puma which assured me that i will receive feedback in 5 working days, quite shocked at the turnaround time i had to take time off work in order to get the debit order reversed. Called liberty on the 25/09/2018 in order to get some feedback(10 days later) and spoke to Fxolise which said that the matter has not been resolved, with much trouble i received and email confirming that this was an error and that my banking details has been removed from the libertys system. I have received another debit order for R3000 that was processed from my account on the 25/09/2018 with a different reference. This is a breach of intergrity as its really hard to understand how this can occur twice.