ACT Fibernet — data limit exhaustion lacklustre customer service

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I switched to act fibernet around a year back the very few months back i started on a 100gb plan but within a couple of weeks act mentioned that i have exceeded the limit so i bought flexy bytes and installed bandwidth + app on my mac and windows... Now even with 100gb last month and for the current month act has slowed my internet speed with 15 days of both months claiming that i have exceeded the limit... I spoke to representatives many times last month and this month but they are not helping me in any way, they said that their technical team will get in touch but that never happened... This is a very frustrating situation.
I know for sure that i couldn't possibly use the whole 100 gb within 15 days and that too on 2nd september when i am down with covid in an isolation ward in nri hospital. Do i have magical powers to use? I sent screenshots of bandwidth + usage also to vizag helpline email id no reply. Because i have been living in hyd for 8 years and i had the same 100 gb limit and never once have i exceeded the download limit and my usage here is very less compared to my usage abroad and hyd,
Either the system in act fibernet is flawed or they are trying to make money in a very unjust way... Either way, it's pathetic!!! I complained about the same in twitter too no response on that at all

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