DASH_ERR04: The account number in the target address is invalid

[AndyM1962]

Every month I go to download my VAT bill, and I get the same message every single time "DASH_ERR04: The account number in the target address is invalid.", usually this goes after a few days of trying but not this time, I'm getting really frustrated at this happening all the time. I try clearing my cache and also multiple different browsers (IE, Edge, Firefox & Chrome). Each has the same issue, what on earth do I have to do just to get access to my bill ?

[MI5]

@AndyM1962 

Try calling customer service to reset things at their end.

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[AndyM1962]

I will, however this is the usual course and all I normally get is try again in a couple of days.

[AndyM1962 · Accepted solution]

Apparently the way to get to the bill when you get this error message is :

Click on the mobile number link, (not the "View my latest bills and payments' link) Click on the ‘View Bill' button or ‘View Airtime Bill’ button.

[freshtracks]

Similar recurrent problem. Different browsers no help (Edge, Firefox). Clearing just the o2 cookies also did not help. Clearing ALL cookies from Chrome seems to resolve it.