Classic 123 payg to Data big bundle

[djh221]

When trying to change from classic 123 payg sim only to £10 payg data big bundle it says the change will take place on 23 March 2042, has anyone ever had this  and any ideas why please.

Thanks.

Del.

[jonsie · Accepted solution]

It's a generic eerror message so don't worry about it

The change will take place on your next anniversary date