Airtel — internet not working on some apps

I m tired from speed of jio so i bought a connect of airtel it works fine for a month but now its internet sucks
No accountability for customer also customer service is retarded i m trying to explain my issue to them and what they said in every answer set your network at lte
And your problem will be solve

I just dont know what to do
My no. Is [protected] and my friend also facing the same issue

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