Enough with the early debits

I am so sick and tired with African Bank making assumptions with my money and salary date. I have made an arrangement for the Bank to debit my account on the 25th of every month but I have noticed a very disgusting pattern. If the 25th falls on a Saturday or Sunday please do not make an assumption that the employer will pay me on the Friday? I am so sick and tired of my bank having to charge me every time there is an unsuccessful debit. If maybe you pay your employers early when payday falls on a weekend please dont make an assumption that all employers do that? Another issue I have is that this month you debited on the 15th, again you made an assumption that the rest of us have been paid. I did not authorize this and I had not even been paid yet so you guys have caused me a great inconvenience on my part as that money was intended for something else. This early debit was completely unauthorised. Stop with the assumption