Orange PAYG phone- anyone know the number you dail to register a voucher bought at Superdrug?

[CremolaFirCone]

the orange help site is down and we can't remeber the number to call to register the £10 i bought.
can anyone help?
we have the voucher number ok.
TIA

a top up?

453 I think

oh thanks AM yes a top up.will try 453.
brill

It will tell you on the top up receipt.