Worst Customer Service EVER

I have never in my entire life experienced such bad customer service, they not helpful or go the extra mile. They never answer their phone or emails and when they do, they are not helpful, a lady I was speaking dropped the line as she didn't want to listen to my complaint. So here is the story, first getting my line active took an entire month, there was missing information/ communication it was bad, anyway, finally, it happens. It went smoothly for 3 months as there was no need to call, everything was working until the end of June, I received a message that my debit order returned, my own fault as I forgot to change the card details online, no problem I call to change the details, no answer. I then try to figure it out on their website, I get it right and email then to redo the debit order, I was told it will take 24 hrs, guess what they only do the deduction today on the 7th 6 days later and still have the audacity to turn my connection off, I called no answer and when she answers she drops the call and does not call me back. My other complaint is to cancel my month to month subscription for the end of July due to moving and I don't have fibre connection where I am going. Do they refuse to cancel end of July they say I can only cancel the end of August? Is there a professional working there I ask myself? I am so disappointed and very upset at this point.