I saw there was a O2 Cloud service. I am interested in testing.

It is not possible

“Post additional option
O2 Cloud (for contract O2 my Home M 0176-70------- 

Post additional option
O2 Cloud (for contract O2 my Home M 0176-70---------

The selected option is unfortunately not bookable with your tariff. In My O2 find suitable offers under Tariff & Options.
We are happy to help you by phone on 0800 8087 187.”

Why can I not book the option?