Inconsistent build

I purchased a Kingsbury firm foam bed 11/2013 in Florida for rental property. It remains firm and supportive 18 months later. Being so pleased with that bed, I purchased another for my home in tn, being promised it would be made exactly the same. It arrived and was soft not firm. It is difficult to roll in the bed because it is so soft. I have never purchased a soft bed and this one is softer than any bed I have even tried in a store. I have not slept well on it and Symbol will not stand by their promise to provide the exact bed. Consistency should be the hallmark of a mattress company. I will never buy this brand again, even though the price was right. The new bed label does not match the original bed label but they will not stand behind their promise to provide the exact same bed.