It is not normal to buy receipts online. According to the relevant public information, Article 1 of the Measures for the Administration of Special Receipts for Industrial and Commercial Administration Trademark Registration Fees stipulates that in order to strengthen the administration of special receipts for industrial and commercial administration trademark registration fees, standardize the printing, application, distribution, use, storage and sales of special receipts, ensure the national financial revenue, and safeguard the legitimate rights and interests of trademark agencies, receipts must be purchased in formal places.