I tried to return a 'router' for which the software didn't work (100s of comments on internet about this problem. However despite their stated legal obligation to accept returns within 15 day without complaint or need for justification, they accepted the router, did not refund, but gave ma a 'bon' to purchase another router (but they have NO choice of routers.
They are acting illegally.
Do NOT purchase from the shop, they are robbers.