Decathlon — Faulty Shoes

Hello,
This email is regarding complain about your Decathlon service, I bought an shoe on[protected], but after 4 months o[censored]sing it the gum of the shoe is detached, and it seems that a faulty piece has handed to us.
After visiting store, many a times, only excuses are being given by the team there.
Requesting you to look into this issue, and as promised, offer replacement for the same shoes!