Contacting 02 when they have cut off my phone

[PollyT]

I changed bank account and failed to contact 02, now they have cut off my phone and without a phone I can't contact them..

[MI5]

@PollyT 

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[Oxonian]

In order to avoid future problems @PollyT, you will need to think about setting up a new direct debit :-

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[MI5]

By contacting O2 as above and as stated, they just forgot to notify O2 of the change hence their DD failed.