Heaven_Dream "Our artists can only make 10 covers a week.
The cover will be ready in two weeks.
This service will be available until June 1st, 2018"
Dana clearly stated that the "service will be available until June 1st" which includes the work time of 10 covers a week per 2 weeks. If they wanted to have it until June 1, they would have stated that "Application for cover would be until June 1st".