Changed debit order date

Good Evening

My mother is complaining that Sanlam has changed her debit order from the 1st of the month to the 15th in December and this month they haven't debited. This is affecting my mother's financial planning please fix this problem or give us call as my mother's debit date was changed without her knowledge.

This is a bad service as my mother has been a client with Sanlam for years.

Please call me on *** or *** to fix this my son will be in contact.