Great Body Suit Snap Closure not Long enough

This is a great bodysuit - however again the suggestion re bodysuits are wrong - they need to establish a sizing for height and larger chests - I got the medium because I am always between a 6-8 and the suggestion says true to size, wrong the snaps keep coming undone - now I cut the tags and afraid I cannot exchange - I hope the other bodysuit I bought is actually what the size suggestion recommends - there needs to be something where the retailer or designer has people of different shapes or breast sizes try items on and give a more accurate sizing, i.e. curvy women suggest this size or size up - some retailers and designers actually have suggestions for these shape types - not everyone is flat chested and a size 0 like all these models - totally unrealistic. The model is supposed to help you imagine yourself in the outfit, but no one looks like the model and a lot times the model makes the clothing look very unflattering, they have no figure they are flat on both sides, how can you