Money to be refunded.....Incorrect debit order amount was taken off my account

I contacted Hollard early this year in January seeing that my premium has increased in order for me to downgrade also checking with my finances it will inconvenience me somehow, so the guy I spoke to he advised that I call back again end of Jan as the premium did not show any changes from their side.... I then attempted on calling back but always to no avail as the phone will just ring and no answer, I then attempted again on the 06th February, the consultant I spoke to was Simangele, reference call ********** 1193 around 10:17, I advised her on the reason of my call, I then told her I would opt for the R10 000 cover, she then advised that everything is captured on the system and for my March I will pay premium for the R10 000 and not R30 000, to my surprise last week when the debit order went off R449 was deducted, I was furious and still am, I contacted Hollard and the consultant I spoke advised that she can't confirm anything as there's waiting period 'til the payments have cleared, she then advised that she will revert back to the consultant that updated that downgrade was successful and will then get in contact with... I have been waiting for the call, can I please request that you deduct the premium for the R10 000 cover and the rest to be refunded to me, should anybody be held liable for this is the consultant I spoke to on the 06th February and please do follow up, but in the meantime I would really appreciate if the money was refunded ASAP.

Awaiting your response in anticipation