Messing up my account

On the 12th On November i got SMS stating that they will double debit my bank account starting from the 2020/12/18 for the next following 4 weeks to make up it we are not getting payed during December, if this is not so please contact us to make other arrangement's. So did nothing because they can double debit my account. So the 4 weeks went past with no problems. Last week it went off including this week 2020/12/23. so my question is the following, why are they still debiting my account if my account are up to date until the 2021/01/05? This is a big concern for me because they are not doing what they say they will I am now paying for something I already paid for so how does this work. This also happened last year. One of my contracts is up for a upgrade very soon and having second thoughts about the upgrade. So now I am waiting to hear there excuse on why this happened 2 weeks in a row. Wonder what they will do if i do not pay my account and block Intellicell from my bank account, and it can be done. They will say sorry, and what that help me. We must always be ok with a SORRY! Not this time around