^ it indeed isn't clear & is a big issue for buyers
What they can do absolutely is charge you the initial delivery cost even if it was advertised as free delivery.
The problem I have is I've been on the receiving end as a seller & when it costs me money personally because someone has just decided 'its not for them' after actually using it for a period of time its more than just annoying.
That said bigger firms can suck up that cost for the best part
Buying from an amazon marketplace seller is not the same as buying from amazon or indeed from a seller where Amazon keep warehouse stock & deal with dispatch/returns themselves.
If you're unhappy with the outcome then get in touch with either your cc company or Amazon directly & they will force the seller to issue a full refund.
Your cc company will just refund your card straight out themselves & deal with the seller directly as I've already said.
That's the bonus of paying by cc & in fact the only reason I actually own one
I still think its wrong to expect 100% refund personally if you just changed your mind & you've used the card aswell.
On top of it now being open box , its also cost them delivery & return charges .
You 'may be' legally entitled to a full refund but I actually disagree with it.
USAFRet - the issue with the regs is there's no info regarding an item being used ,& to me if an item has been used its not being returned 'as new'
Curry's/PC world return policy for items bought online .
An unwanted product can be returned for a full refund within 21 days of delivery as long as it’s still in its original, unopened packaging. This returns policy for unopened goods is in addition to your statutory rights and applies to purchases made in store, online or over the phone.
Separately to the 21 day policy above, and in accordance with your rights when you purchase goods online or over the phone, unwanted items can be returned even if you have opened them for inspection as long as you let us know within 14 calendar days from the day after delivery. Once you have told us you want to return an item, you should do so without undue delay and not later than 14 days from the day on which you informed us of your decision to cancel the order. You can examine the goods as you would in a shop but to obtain a full refund you must not start using them, install them or input any data/software. The goods must be returned in ‘as new’ condition and in their original packaging.