Suspended account because of bad administration

So completely upset by Momentum Health. We changed main member details from myself to my husband. On the first of February we thought the deduction would go off my husbands account but instead we received a notification saying that I had insufficient funds for the deduction on my account. Without getting upset, we transferred the money and paid from my account. 1st March my husband received a double deduction on his account. We called momentum and the women said to us they cant reverse it back to his account even though they made the mistake. They paid me back on my account and paid my husband back the double amount and have now SUSPENDED our account!!! Freaking angry. Now we are made to feel like there was insufficient funds and sit without medical aid till next week Thursday...and now we have been given a warning that next time this happens our account will be cancelled!!! THERE WAS SUFFICIENT FUNDS, there must have been if they successfully deducted two payments from us!!! What If something happens to my family between now and Thursday??? This is unacceptable and disappointing.