Absa never stopped my 76-year old mother's insurance since 2017!

Absa never cancelled my mother's (76-year old pensioner) request to have her insurance cancelled since 2017 after my father's passing. As a result, she's been doubled insured with Santam, because of Absa's error for almost 5 years! And my father was a client for more than 50 years and was treated terribly by their banking division! I sent an email again to *** and *** and guess what - still no reply.