Good evening, @vivekkpatel23.
Let's work together to get these transactions categorized correctly.
The best route for this problem would be to download the webconnect file from your back, edit the descriptions within Excel, and then manually import that into QuickBooks Online so that you can batch categorize them accordingly.
You'll also need to exclude all the transactions (the ones that are already listed in QBO) that need to be categorized so that no duplicates will occur.
There's additional details in the hyperlinks I provided.
If you run into any trouble, don't hesitate to let me know. I'm only a comment away if you need me. Take care!