Orange Top Up

I brought a new mobile phone the other day and it came with a new Orange SIM card, but to buy the phone you have to buy £ 10 top with it, anyway I do not know how to get my £ Top up 10. . Anyone know or help? All I know is that £ 10 is on the SIM card.

There is a number that you need to call. The number must be placed on the back of the card or recharge the SIM card. There will be a 3 digit number. Dial the number and you can use your credit.