Online access blocked for R20 service fees not deducted

I opened a savings account last year Sep/Oct. The monthly services fees went of automatically since then, until this month. Every time I want to open my digital profile, it is locked for unpaid service fees. I phoned last Wednesday and the lady said that they will deduct the R20 service fees within 24 hours - after very sarcastically asking me if there are funds in my account. Friday, same thing, I phoned again, and the same story.....why are my digital access being blocked / denied because they can't deduct the services fees which happens automatically. Now I'm being penalised for their wrong doing...... I will remove all my savings and take it somewhere else.....