Infringement of consumer rights

I purchased a galaxy tab A9 plus online on October 3rd 2024 at 17:00 then realised upon doing research that it was not suitable for my son's user requirements. I then decided to cancel the order about an hour and 20 minutes later as the option was available. I received an email stating the cancellation request was under review, followed by another stating my request was rejected, without stating any reasons. Samsung continued to process my order for shipping despite my request for it to be cancelled. I will not accept the parcel as I am well within my rights to cancel the online transaction. . In terms of section 44 of the ECTA, a consumer is entitled to cancel an electronic transaction (or any related credit agreement) for the supply of goods or services without reason and penalty within seven days from the date of receipt of the goods or conclusion of the agreement (as applicable). In other words, the consumer has a seven-day cooling-off period under the ECTA. That is exactly what I did, and therefore, I expect the cancellation to be processed as I will not be bul**** into a purchase that does not fit my requirements.