I've accidentally removed my bank account. on reconnecting it, its deleted all my transactions sorting and receipts....please tell me there is a back up system?

Let me explain what happens if you delete a bank account in QuickBooks Self-Employed, M-roseplumbingse.

When an account is deleted, all related transactions will be deleted as well.

We're unable to back up the transactions. You'll want to either add or import the old transactions manually. 

If you have additional questions, you can always leave a comment below. We'll respond as soon as we can.