Not the same right as online purchase cancellation
Installment purchases are commonly covered by their own specific consumer protection rules, separate from the shorter cooling-off period that applies to general online or distance selling. Knowing which payment method you used, and which rule actually applies, is the first thing to check before assuming a deadline has passed. This is general procedural information, not legal advice β confirm current deadlines and requirements with your national consumer protection authority.
Even after the deadline passes, other options exist
Once the legal cancellation window has closed, a refund or contract cancellation is no longer guaranteed by law, but it is still often possible to negotiate directly with the seller. That kind of resolution depends entirely on the seller's willingness, though, so it is a very different position than exercising a guaranteed legal right.
Frequently Asked Questions
Can I still cancel if I've already used the item?
If the item has been used or has lost significant value because of it, or was damaged or lost through the buyer's own fault, cancellation may be restricted. Whether a specific case qualifies as an exception depends on the individual circumstances.
Is there anything I can do once the withdrawal deadline has passed?
You can still try to negotiate a refund or cancellation directly with the seller, but that is a voluntary arrangement rather than a legally guaranteed right, so the outcome is entirely up to the seller's discretion at that point.