sim swap

[mcl16]

hi ... i have just started a new sim only monthly contract for my old android phone.   the phone is currently o2 pay as you go.  

i used my other phone (an iphone on 3 network) as the contact number for o2 to use to let me know how things were progressing.

i am concerned that when i text 'swap' on the old android phone, o2 will remove my iphone number (because they have that on record from my purchase of the new sim only contract) rather than the old number on my android phone and i will end up losing my iphone number

is this possible or am i not understanding things correctly?

i am hoping that o2 will remove the old android PAYG number and replace it with the new pay monthly number.

[Cleoriff]

@mcl16 

 Follow advice here

https://www.o2.co.uk/help/device-and-sim-support/how-to-keep-your-mobile-number 

Switching your number from Pay As You Go to Pay Monthly

Fill in the keep my number form. You'll need your temporary Pay Monthly number from your O2 confirmation email or sim pack. We’ll transfer your number within one working day (Monday-Friday, 9am-5pm, excluding bank holidays). If we receive your code after 5pm, you’ll switch within two working days.

On the day of the switch, your Pay As You Go sim will lose signal. When this happens, put your Pay Monthly sim in your phone. If you don't have signal, switch your phone off and on every couple of hours until you get a signal. If you still don't have signal by 6pm, contact us.

Texts and picture messaging can take up to 24 hours to work after the switch.

If your Pay As You Go balance is under £350, it will be transferred to your Pay Monthly account when you receive your second bill. If you're entitled to a loyalty bonus, up to £550, we'll add credit to your fourth bill.

[MI5]

@mcl16 

No you won't lose the wrong number.

You start the sim swap from the sim with the number you want to keep and it is that number they switch to the new sim. It makes no difference what contact number they have for you.