Maille Old Style Whole Grain Dijon Mustard, 7.3 oz

Dear seller, which is it six mustard jars or one? was totally ready to check out when i noticed many reviews saying the description is not what you

Some of the reviewers state that they only received one jar instead of six. I would like to place an order but am concerned this will happen to me.

Is this kosher?

Should my Maille mustard jar lid pop when it opens?