unwilling to remove HOLD on my FlexiReserve acc

I've been a loyal Home loan owner for more 12 years now and enjoyed access to Flexi Reserve account but suddenly for the past 10 months I have since been barred to this facility and even accessing my Bond balances from ATM,no one in the bank told me of reasons I'm treated this way. I've been to various Absa to get explanation or as they say,remove that HOLD,all in vain. I have never defaulted in my payments instead I'm way ahead of the installments. HelloPeter please help me against this unfair customer-service practice.