I want to change my prem from 1 device to at least 3 devices. How do I do this?
Seems you purchased this from Apple iTunes and it can be used on other iOS devices with the same Apple ID used to make the purchase.
Alternatively, you may contact Apple, cancel the order, get a refund if possible and buy a new multi-device platform subscription from our website.
For cancellation and possible refund;
More detailed instructions with photos at https://support.apple.com/en-us/HT202039
What is your current subscription?
Please compare it here:
I bought this after i downloaded your app. Payed for one device one year.