Pampers - Not all the same?

I have always bought Pampers Active for my son, now that he is potty training, I am buying the Pampers Pants - which is a lot more expensive.<br> I found this company that sells Pampers and other baby products at a fraction of the cost, so I bought my usual 3x packs of Pampers Pants from them.<br> Just to find that the amount in the pack is less than what I usually get - 44 and not 48.<br> The nappy is a lot thicker than the ones I usually get<br> The sides tear loose while my son wears it.<br> Worst of all, within an hour of my son wearing it, he had terrible nappy rash!<br> <br> He is turning 3 this year, he has always worn Pampers - now suddenly with these seemingly cheaper diapers, he gets nappy rash?<br> <br> The company I bought it from, conveniently just says I should sort it out with Pampers as they are only the supplier and not responsible for complaints.<br> <br> All I asked was for them to collect the 2 out of the 3 packs bought, and refund me.