What happens after?

[support_bae]

What happens after your contract finishes when you bought your phone from an online company like: mobiles.co.uk mobilephonesdirect.co.uk dialaphone.co.uk etc...

For example if a buy a contract on O2 from mobiles.co.uk, after it ends, who do I deal with? Do I get upgrade deals from O2 or do I have to find another contract?

Also, who do I get billed by? mobiles.co.uk or O2?

 

[support_bae]

If phone X is £50 on a £30/month contract. How much will I be billed today?: £50 or £80?