I can assure you that it is pretty uncommon for any JAMstack site to require $260 worth of bandwidth daily. There could be many things going wrong here:
- Netlify is calculating the bandwidth incorrectly (very unlikely but still possible)
- Your site has recently received a huge influx in visitors
- Something is not working either as expected or as efficiently on your end
Unfortunately you cannot contact support directly on the free tier. I have escalated this for you and hopefully you should see some news from a support engineer tomorrow.
In the mean time I urge you to read this thread and troubleshoot anything that could be causing the high bandwidth:
Hang tight… we’ll get this sorted for you soon.
Kyle.