Worst Online Shopping experience ever

Worst online shopping experience of my life. Placed and paid for an order on 25th July 2022. Bank transfer shows payment was processed. Contacted them on the helpline and was informed that that the person handling that desk was on leave so was given the exact same online details to resubmit my complaint. Finally contacted a direct mail on 8th August, no response received. Another complaint sent on 31st August and response given that order was not processed as payment was not received. On asking for a refund was informed they want proof of account plus my ID details to verify my account, in order to avoid ******** and spamming. In accordance with FICA regulations and just a teeny tiny bit of actual work my account can be verified by simple comparitive analysis of the the proof of account furnished and the info on their servers from which payment was originally received. At Present awaity refund but really believe Firstshop out to be renamed Lastshop..it will definitely be the last time I have dealings with these *********** people.