Changed transaction in batch payment

Hello, I’m in need of help as I seem to have gotten myself in a tight spot. 

I am a junior bookkeeper, have been using MYOB AR Desktop for only 3 months now. I was trying to correct a payment applied to a bill, as it was paid by the wrong method. The payment was made by a processed, batch electronic transfer, that was already reconciled, which I didn’t realise or think to check at the time. I reversed the payment, then realising I had nothing to apply the reversal too while trying to generate the supplier debit, deleted the reversal.

Now, the bill still appears as closed but with no payment date, and the batch payment looks reconciled but appears in the bank feeds under hidden, with no transaction to reconcile to. 
All the articles I’ve read to correct this all say to not do what I’ve done, which is alter a processed batch transaction. Not sure how to fix this at all and am worried i entirely messed up. 
Any help is appreciated, thank you.