Printful: Print on Demand

I have used printful for 3 years and have been very happy to date. Recently however they have updated their app due to a permissions change on shopify and following that update my set up has been broken with products showing as out of stock, orders not syncing and no guidance from printful on how this change needed to be managed. I cant seem to ever get anyone on chat at the moment and the emails back and forth don't seem to appreciate the seriousness of this situation that I am sure others are experiencing.