Help Touch Tones on - still unable to top up

[Robert14123]

HTC Desire HD 9191

With orange I ring 453.

I press 2.

Touch tone is audible.

"Sorry, number is invalid"

Try turning "Audible touch tones" Off and On. Retry. Not working.

I cant top up! Help!

P.S. (This is the only means for me to top up, reasons are long to explain. I will have to go in a shop probably to do this now...)

 

[Robert14123]

OK, so update.

Numbers 1 and 3 work.

Number 2 doesn't work.

Maybe the service is down?