Excuse me, why did I send a short message and get 0.2 yuan?

Unicom users charge 0. 1 yuan for sending domestic point-to-point short messages. The maximum number of words in each short message is no more than 70 Chinese characters or 140 characters, otherwise the system will automatically divide it into multiple short messages and charge according to multiple short messages. 0.2 yuan's short message fee is charged, which means that the content of the short message sent exceeds 70 Chinese characters, and the system automatically divides it into two parts, so two short message fees are deducted.