Change direct debit

[SLB42]

I'm trying to change the direct debit details on my mobile payment account , but it keeps telling me details aren't correct and to try again . 
any ideas what to do ? 

[daveNOS]

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@SLB42 wrote:

I'm trying to change the direct debit details on my mobile payment account , but it keeps telling me details aren't correct and to try again . 
any ideas what to do ? 

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@SLB42 Call customer service, they should be able to change them for you.

[SLB42]

Thanks I'll try that tomorrow