My nedbank home bond is paid and is in good standing but stil receive letters and sms saying no payment

I would like to share my opinion on nedbank home loan division, i pay my home bond cash via eft every month before due date so that my home bond is all in order, i received letter and sms stated no payment please rectify and call the call center When i call the call center they tell me home bond account is all in order they received payment . This is very frustrating when my account is up to date. The time i had disability stroke in 2015 August when i claimed from nedbank insurance to settle my home bond, nedbank refused to settle my home bond 4 months after my 65th birthday i did not miss any installments , yet i am still paying my home bond, keeping my account in good order, yet i still receive sms saying my home bond payment is not reflected on your system, i am not happy how Nedbank handles they payment system