problem with new phone

[Janet6]

Hi, please can anybody help?. Received a new phone last week, but calls are going to the old phone, cannot receive calls on new phone.Apologise if it is something trivial, I am not tech savvy, 60 something Granny, who knows nothing about phones. Also why has 02 put another direct debit on my bank account, when all I did was upgrade to a new phone and data. Phone is Sony 10 111 Thanks anyone for help.

[MI5 · Accepted solution]

@Janet6 

You need to use your old sim in the new phone if it fits.

If not, do a sim swap starting from your old phone Guide: Sim Swap: a mini guide 2017 update 

The additional direct debit will be for the device payment.

Guide: How does O2 Refresh work? 

[Janet6]

Thankyou so much for your help. I know what to do now.

[MI5]

You're welcome