MarmiteYeast Extract (250g) - Pack of 2

The description states Marmite 250g 2-Pack. The photo of the product shows a label with 125g. Does this mean two jars 250g each or two 125g jars?

What is the expiration date?

What is the sodium content?

The jars arrived leaking. if shipping to arizon in summer,, thermally insulated packaging should have been used. how do i obtain a refund?