Marmite unavailability

We haven't been able to buy Marmite for months and the lame excuse about not being able to acquire yeast because of Covid just doesn't apply anymore. Beers are readily available so why can't you find yeast to make Marmite for goodness sake?!! Pathetic to say the least and clearly you don't care less about your customers as there is a very real demand out there for Marmite.