
Whether there is a nationwide shortage or not isn't really relevant, your supplier is short! It's possible that with the recent TV programme more people are raw feeding, it's also been a hard few months for farmers etc so maybe the demand is up and supply is down. I know my supplier has had many new customers. But regardless? Just use another supplier for now and ask if your usual one will be ok for next month.
What area of the country are you in? DAF, MVM, Raw 2 Paw, berriewoods, any of these are worth looking into.