Inflexibility in these trying times!

Absa has been my bank since they started. I am disappointed in their inflexible account policies especially in this Covid-19 era and the vulnerability of their aged clients. I retired and had some money. Absa advised I change my banking account from savings to cheq account which was great because I retained my bank account details. Covid arrived and money was used. I now only have Sassa income into my account but have over R100 deducted from that amount. My circumstances now only need the transact account. Oh no you only had "one chance" to keep your number so this will mean a new number??? They will now force me to stand in the notorious Sassa line to change my banking details. Will this inflexibility of a bank be my "One Chance" to get Covid?