Airtel — Not being able to use internet freely after recharge

Hi! So basically my pack validity ended yesterday(25th July 2021) so I recharged it back today (26th July 2021). But after recharging, the problem started.I couldn't access to several websites while using google in firefox.The internet speed slowed down. Several issues occured but it kept on redirecting me on this link http://one.airtel.in/rcconf again and again.Tried clearing browsing history and several other ways but it was of no use.What kind of joke is this Airtel playing?I just recharged and now i can't even use internet properly and freely and getting redirected to their irritating webpage.Please provide me a solution as soon as possible.