Unhappy with the debit order system

So I have a miway life cover and the reason I went with them is because my car insurance has been with them for years and have been a very happy client. The frustration that I'm getting with Miway life regarding the debit order doesn't give me the peace of mind. I've missed 2 payments now and the strange thing is that I'm those 2 times my car premiums went through successfully. September's payment was debited on the 23rd and I only got paid on the 25th which is my pay day, called in on Tuesday requested for the debit order to be resubmitted asap, lady said she'll send it through for Wednesday. Wednesday came and gone no debit order. Thursday someone called and I explained the situation and he said he can see that the debit order has been loaded will probably go off over night. Woke up Friday morning, debit order still has gone through. Called in but the lady's line was so bad couldn't make out what she was saying. Eventually hang up the call after something like 10 minutes of the holding and the conversation that was not going anywhere. Got a missed call from them half an hour later from the time I hung up. It's a nightmare, it's a frustration trying to get them to debit money from my account. What worries me is that should anything happened to me they will refuse to pay out on the grounds that I missed a payment which by the way I requested the last time this happened that if 25th falls on Saturday or holiday please let the debit order go through on the next working day only to be told now that their system doesn't have that option rather I should let my debit day be 2 days after my pay day which doesn't make sense cause all companies have that option. All my debit orders go off on the 25th or 1st working day if 25th is on a weekend or public holiday. Why should I be the one to accommodate the company cause they are supposed to the ones to accommodate their customers? I'll shopping around for an insurance that will give me a peace of mind and be willing to accommodate me and this will not just for the life cover I'll be taking all my car and house covers to another insurance. company. Can't deal with this frustration and inability to sort out such a small thing