Barcode cannot be scanned


I have sent my first batch to FBA and received an email that some of my products have problems with the bar code. So I acknowledged the issue. I assume Amazon will have to now relabel my products and it will cost me extra. So far I haven’t received any message from them regarding the solution to this problem.
In the inventory, page product shows with its original quantity available to sell. When you open the product page it is available for sale. But I can’t even add the product to the basket (friend tried from their personal account)
Any idea how long will it take for them to make it available for sale?