Stormfiber - losing faith after months of chaos (rant)

TLDR;
Stormfiber internet has been unreliable for months, slow speeds, frequent outages, delayed support, and unresolved issues. Despite repeated complaints and technician visits, problems persist. Urgently need a stable alternative in Sabzazar. Avoiding PTCL Flash Fiber.
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My Stormfiber connection had started deteriorating months ago, mostly on weekends. Since it was rainy season, I let it slide. Then in early June, the connection completely died. I was out of town and my mother reported it. I thought okay, I’ll just activate a data package on her phone and sort it out when I’m back or free.

Anyway, after that the internet came back but stayed painfully slow. Then on 24th July, it completely vanished again. Router showed red light, line loss. I contacted them and explained the urgency. It was Thursday, I had an important online presentation the next day. I had to rely on mobile data because I couldn’t even shift locations due to hardware being involved, so relocation wasn’t an option.

They told me it would be fixed in 24 hours, and of course, the team showed up after exactly 25 hours. They fixed it, but the speed was still trash. I filed another complaint. They just said they made some backend changes and marked the ticket as resolved.

Then last evening, internet went down again. That’s when I lost it. I kept calling and following up. One team came and said it's not their area, the ONT team will check. ONT guy showed up eventually. I asked how long it’ll take, he said 15 minutes max. While I went to get a backup device from Zong, I was told I need to visit Mall Road to get an MBB SIM. I came back, and the ONT guy was still at my place.

I told him, "If it's not going to resolve today, please just be honest so I don’t keep waiting." He replied, "No bhai, it will be done." I got home, and surprise, internet still down. Red light. ONT disconnected.

I called support again and asked why the team leaves without confirming if the issue is actually resolved. I had a critical demo and these people made things unbearable. Someone else in my home also works remotely, so it created a lot of stress. I kept getting tossed around between calls and emails. Finally, when I mentioned PTA, like magic, the internet came back. It’s working for now. Hopefully, it stays stable. But honestly, I have no faith left.

What should I do with Stormfiber now?
Can this ever get resolved permanently?
Are there any decent alternatives in Sabzazar?

I already switched from PTCL. Don’t want Flash Fiber either, their packages seem too good to be true and I’ve heard from multiple people that the invoice increases randomly after some months. They call it a limited-time offer but it’s a trap.