So very disapointed

I bought a dress on sale about a month ago for a wedding I have in a weeks’ time. I had to wear this dress to a funeral 2 weeks after I bought it. Luckily I had a jersey with me because the seam on the right side and on the back teared. Not because of the dress being too small but from bad workmanship. Obviously this dress was on sale but when I returned it it was even marked down lower. I did not keep the slip as I am so use to the quality of your clothes. I refuse to accept a R75 deficit. If it fits and it looks good I don’t keep the slip. Very disappointed.