I'm scared I'm being scammed

I called a number, not sure what number it was. I never listened to anything automated. I was immediately talking to someone who sounded Indian. I wasn't sure when my bill was due or when it would be cut off. He informed me within the next 2-3 hours it would be cut off. He had the past due and total amount I owed and the last 4 numbers of my credit card but asked me to say the whole number to the credit card, expiration date and cvv number to verify. This was friday. He told me he could keep my service on until today but I'd have to pay the full amount. This has never happened before, I've always been given enough time to pay the past due amount. He also told me he would be calling me back today by 10 am so that I could get the money in the bank. He then told me not to try and pay online I could only pay through him because he is the one who give the the time to pay and if I did pay online then I would be billed twice. I looked online and it still says I can pay the past due amount only and that it's due by tomorrow. He didn't call me at 10 am today, he called me around 5. I explained the banks were closed because of columbus day so i couldn't deposit the money into the bank. The best i could do is pay from 2 different cards unless he'd give me until tomorrow. He agreed. Is this normal??? Is he legit??? The number he called from is [Edited: "Personal Information"] and when I tried to call it back no one answered, I was to leave a message. This just dont seem normal to me! Please let me know if he's legit! If I can pay on the app or if I have to pay him!!