
Buying online usually gives you more protection rather than less, because distance selling rules sit on top of your rights for faulty goods. The harder questions are about who owes you the remedy and how you recover money from a seller you cannot walk into and confront.
Consumer law requires goods sold to you to be as described, of satisfactory quality and fit for purpose. Distance selling rules add a cancellation window for a change of mind. Card rules add a dispute route through your bank when the seller will not engage with you at all.
Which layer to use depends on the problem. Wrong item, fault, late delivery, or a seller who has gone quiet. Name the layer when you write, because each one has a different clock and a different decision maker.
Read the returns page before you order, not after. The window, the condition the item must be in, and who pays postage are all set out somewhere on the site, and knowing them at the point of sale saves an argument later. A dated screenshot of the listing is useful too, because product pages change once an item is discontinued.
You normally have a set number of days to cancel an online order for any reason, counted from delivery. Tell the seller in writing inside that window, then return the goods within the further period your local rules set. Return postage is usually yours on a change of mind and usually the seller's when the item is faulty.
Exemptions exist for customised goods, perishables, sealed items you have opened, and digital content you have already downloaded. If a seller refuses, ask which exemption applies and where it is written in their terms. Keep the refusal, particularly when the exemption does not fit your situation.
On a consumer sale the seller usually carries the risk until the goods reach you. A parcel taken from your doorstep or lost in transit is normally their problem rather than yours, unless the terms say otherwise and local law permits it.
If a promised delivery date passes, contact the seller and agree a new date in writing. If it slips again, you can often cancel the order and ask for your money back. How late is too late, and what remedy follows, varies by country, so check the rule that applies to you.
The same order of remedies applies as in a shop: repair, replacement, then refund, with a short early window in some countries where you can reject the item outright and ask for money back. For a faulty return, the seller pays the postage in most jurisdictions.
Photograph the fault before you send anything back, keep the tracking number, and ask for the refund date in writing. A return that arrives with no tracking becomes a dispute about nothing, and you will lose it.
If the seller asks you to send the item to a repair centre instead of taking it back, you can agree, but get the arrangement in writing first. Repairs that vanish for weeks are a common complaint, and a dated message asking for an update keeps the responsibility where it belongs.
When you buy through a marketplace, the seller is usually the one who owes you the remedy, but the platform may run its own buyer protection scheme. Read those terms before you escalate, because the deadline is often short and the process runs separately from your legal rights.
Buying across a border adds friction and time. You may end up relying on the marketplace scheme, your card issuer, or a consumer body that handles cross border cases in your region. Ask your national consumer body which route fits your purchase before you start writing.
Cross border claims take longer and often need a complaint in the seller's language. Start early and keep the whole message chain in one place, so whichever body ends up handling the case can follow the sequence without asking you to reconstruct it.
Paying by credit card can add a second claim route. In several countries you can claim against the card issuer for goods bought on credit when the seller defaults, and that route can reach higher amounts than a chargeback. Debit card cover varies far more between countries and schemes, so ask your bank what it offers.
Keep the confirmation email, the tracking, and a copy of the description that appeared on the product page. When you raise a dispute, set out the facts in order and never overstate the loss. A card claim is time limited and not guaranteed, and a claim you invented is fraud rather than persistence.