Woodland — men shoe gc 19251150 dbrown 41

I am a regular customer of woodlands and i purchased a shoe on 30/08/2018 from woodlands at hilite mall calicut. The very next day itself its locking stitch started going off and i called to inform this to the hilite mall showroom and i was out of station for a week and they told me that i can visit after reaching the place and i did visit them. But they said they need instruction from you to replace the product or they can fix it locally. I am really upset about this due to its poor qc. Please advice.