When is the consumer not entitled to retreat from the contract?

Over time and the emergence of fresh legislative proposals, we can see a tendency in the e-commerce marketplace to grow consumer rights. They are a large incentive to usage online purchases, but any of them are a real nuisance for e-shop owners, especially those smaller or just starting their business. 1 of the most common problems is the return of purchased products within the statutory time limit of 14 days. However, this is not the case for each commodity. erstwhile can we deny the client the right to retreat from the contract?