Hi elsie61,
Thanks for posting and welcome to the Community Forum.
I'm sorry to hear about your difficulties matching your Bank Feeds with transactions in the file. In my understanding, the allocate transaction tab creates a new transaction and directly matches it with the bank feeds. If you already have a transaction recorded for that certain bank feed, you will need to match the bank feed to the transaction instead of allocating it.

I would suggest matching the transaction in the file instead of allocating it to avoid the bank feeds from creating a new transaction.
Let us know if you require any further assistance with this. We're happy to help.
Thanks,
Genreve