Why are USwitch deals much better? Do I lose something?

[AlbertJ]

Hello,

Am looking for a new sim plan as my current one has expired and is going up in price. 

I found this deal on USwitch: 

And the comparable plan on the website is: 

What do I miss out on by going with USwitch? It would seem obviously the Disney+, but I am not too interested in that anyways.

Eg how do I deal with for support and to get my number transferred over? And do I get features like wifi calling?

Thanks
Albert

[MI5 · Accepted solution]

@AlbertJ 

You deal with o2 support just the same way and yes you get wifi calling.

They are just special deals to attract customers so no reason for you to not go for it in your situation.

[AlbertJ]

Awesome, thanks for the quick response.

[MI5]

You're welcome