I'm abroad right now. I have a voucher code and got it for £10. I want
to top up my line. When I call 4444 it rings busy and when I dial *111*#
it gives an error like UNKNOWN TRANSACTION. How can I solve the problem?
Yes, i purchased a voucher code. But when i'm calling to 4444, it seems
busy and i tried also *111*# but it seems UNKNOWN APPLICATON error. Do
you have any different suggest? Thanks for reply.
I'm having the same problems for my credit and debit cards. I tried
multiple cards and none of them worked. How can I top-up my numbers?
Error is below.Sorry, it’s not been possible to take your payment. Your
phone has not been topped up. Please try ...
