Unisat posted on the X platform that it will adjust the service fee for inscription engraving. No service fee will be charged for a single inscription of no more than 20 inscriptions. If a single order exceeds 20 inscriptions, the service fee will be charged from the 21st inscription. The service fee is 3000 + (number of cast inscriptions -20) * 150sats, and the service fee will be charged up to 4999sats.