Text is blocked and T-Mobile is saying I was spamming

Friends of mine who run a cyber security company looked at my phone today and did some research. They found nothing on my phone. When they researched it on the internet they said they really only found complaints about T-Mobile.  They are suspicious people have figured out a way to duplicate your number and phone addresses within the TMobile system. They used very  technical terms that I don't understand.  T mobile blames my phone and I cannot disprove it, but they have not proven it. They won't have there "engineers" talk to my people. How could the complaints only be with one company or overwhelmingly with one company if it is viruses in phones.