Complex sentence: Digital pre-sale of the album on iTunes became available in the US from April 15 and includes the exclusive bonus track "White Telephone to God", while giving instant access to the album track "Selkie".
Split into simpler sentences: Digital pre-sale of the album on iTunes became available in the US from April 15. The exclusive iTunes edition includes the exclusive bonus track "White Telephone to God", and pre-orders gave instant access to the album track "Selkie".