JetBlue's credit card terms say that you're only eligible for free checked bags if you ticket was purchased/paid for with the JetBlue Plus credit card.
But does anyone know if this condition/requirement is enforced always, sometimes or never.
Based on experience, will one generally get the free checked bag benefit even when tickets are purchased with a different credit card, so long as your JB number is linked to the credit card, and your reservation includes your JB number?