Only for Sunday walks

Disappointed, disappointed, disappointed.
I bought these shoes for hiking among others on the GR5. After 3 days of hiking in Wales, and 12 days on the GR5 those it had soles that took off, and very worn interior trim.
I do not use them in extreme conditions, but I walked on average 35km per day over 2000m altitude, which for the store owner, or I bought seems much for these shoes, or my remark that it is walking shoes but not great hiking as announced Merell.