How about you tell us what you are doing, and we can give you tips to improve?

there are 1001 ways to grow these plants, all depend on your environment.

I, myself, cannot keep a store bought plant alive if i keep it in their potting soil. probably, i just water too much, but knowing that, i (radically) chop off the plant at soil level and re-root it in my preferred medium (50% perlite, 50% AV mix). - the added benefit of this is that it lowers the risk of bringing bugs home, BUT it takes much longer for them to re-bloom....

there is no need to do that to keep plants happy though. Joanne successfully keeps hers intact and brings them to bloom again. maybe she'll chime in with less drastic advice :-)

Karin

I don't do anything to much to a violet when I bring it home. I kind of give it a chance to adjust to me and me to it. I do take off and start leaves/suckers if the plant is crowded with either one. Just enough to do general shaping. I always buy the most crowded plant I can.

Usually this works for me pretty well!!! Rosie

I'm not an expert - but I have had good success with immediately re-potting the violet into my pre-mixed soil. I do equal parts of perlite, vermiculite, and peat moss. This has worked great for me! But like Rosie said, taking a leaf or two off of the middle row of the plant and rooting them as back ups is always a good idea. And like Karin said, everyone always has their specific way that works! :-)