How do I add a spending cap to my pay monthly bill

[Suzymysize]

I would like to add aspending cap to my monthly bill 

[Bambino · Accepted solution]

@Suzymysize You need to speak to customer service.
Call 202 from your mobile or 0800 032 1402 from any phone.
When it comes to the reason you are calling, stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Say 'Upgrade', 'Lost/Stolen', or 'Fraud' if the suggestion above doesn't get you through.
Best time to call is 8 am. 

Other CS numbers here: Guide: Coronavirus Community Help and Support