Home-connect forcefully took over my dad's account😭

I've tried for months to assist my dad with the relationship he had with home-connect regarding the debit order date. When the consultant approached him, wanting to sign him up, he made it clear that he's a pensioner from the onset. And that he has no other concrete income. My dad had a problem because they'd try and debit him on the 25th/26th/27th and my dad gets his sassa around the 3rd, latest the 7th. And they'd disconnect it, and we'd have to buy lots of airtime and call them to reconnect it. I called, asking them to accommodate my dad because around the 27th, he has less than R10 in his account but they said their system doesn't have a suitable date for him so he has to make sure he leaves money for them..imagine, u get paid on the 7th, you leave the money until the 25th..there's always unexpected bank charges and funny things happening on people's accounts and leaving money for a debit order that increases amount every 3 months is highly impossible, especially when there was no prior communication. I then told them they creating unnecessary bank charges for him. We would have to borrow money, run around like headless chickens just for him to be able to stay connected (with a very poor connection on top of everything) and when we tried to cancel, they told us their rule says we have to give them a notice of 3 months but keep paying for that duration. I think the last time we decided we can't keep paying and forcing a relationship with them, was 3/4 months ago without any debit order going off my dad's account. I sent an emails I think in the same month we decided we don't need their stinking services, I clearly stated that we need to cancel and I gave them reasons why, the same reasons i've been giving them telephonically and via email, and they kept sending emails saying they will call him or say they've tried to call my dad but when I checked his call records(missed calls) there were none made. Today, (24/08/2024), it's not even one of the debit order dates we were once given, my dad did an odd job, got paid R1000, they took R876 with no prior notice or anything, after all this time we believed "it was over". (3/4 months now) What the hell? I mean they have not been rendering any services to us for more than 3 months but because all they want is money, not render proper service, they treat my dad's account like a playground. Because they're *****mers...They're given themselves signing rights on his account and do as they please because my dad is a pensioner and they believe he's an old fool. I just tried to reverse and stop the debit order, but they've processed it in such a way that my dad's hard earned money stays with them because they're now the only ones who will decide what my dad does with his money and how much he can use for his needs, when they've made their bank account nice and fat. They must just give back my dad's money because he's not their slave. They failed to accommodate him, saying their system only has the 25th and the 1st for my dad...how long do they expect a lousy R2090 sassa grant to last in his account? And worst part, their monthly payment kept increasing like crazy. When my dad joined, it was less than R300. But what made us feel they were crazy, it kept going up until it was almost R450. R2090-R450=R1640. What must he do with R1640 for 31 days? I told them he says he can't afford it anymore but as expected, they couldn't care less. Can they("please", which I feel I shouldn't be asking but demanding) terminate this stupid and stinking relationship with my dad and leave him alone because my dad's clearly forcing them to render their services to him after they came to our house, selling their stupid wi-fi bull****.