Bad faith

I have court granted power of attorney over my mother, HP Koen's estate. She suffered stroke August 2021. Currently in frailcare. She has an ABSA cheque account t from which her cell phone and DSTV premiums are deducted. Funds are ttransfered from her FNB ac out ti make provision for these. In note on her bankstatement that ABSA removed her overdraft facility, without and notice as to the reason why. She has been a loyal ABSA customer for the better part of 50 years. To unilaterally remove a private enjoyed is unacceptable and not Inwood faith. Tge facility is mainly there for medical expense payments as and when required. Funds are always transferred I to the account to bring balance back into facility. Please reinstate the R5000 facility.