eWeLinkStore.com is a web store operating in the European Union, so you are protected by all consumer rights guaranteed by the EU regulations.
As part of that, you may cancel your order within 14 days, return the product and get a refund.
You may send your cancellation within 14 days after the day you received your goods. If the 14-days period expires on a non-working day, your deadline is extended till the next working day.