Bad pants construction

As you can review my purchases with you they are quite a few and never have I complained because there was no reason. Sadly there is always a first time, the Dark Khaki pants I bought at the part where it streches the cloth ripped open, this happened on both sides and I was very very surprised, I tried to put them on once and that was when it happened, I took it to a tailor to fx them but told me the cloth was rotten, pudrid.I want to know with my record with you can you please send me no charge a new pair of pants, if you send them to me I will be able to return the ones I have in the package you send me the new ones if you want me to return them, I have already spent $20.00 trying to fix them but with no success.Please let me know your feed back. I wrote a few days ago to the packaging division with no answer up to know.I hope I have better luck with you.With kindest Regards,Jules Garcia