BedBooking doesn't allow transferring your Premium access from one platform to another (e.g. from Android to iOS). However, you can purchase an additional package.
1. Currently, you have an active Premium package for Web + Android
2. Meanwhile, you change your Android mobile phone for an iPhone. You then need to expand your current Premium access to include the iOS platform.
In this case, you need to purchase a Premium package for platforms: Web + iOS.