Does anyone know about o2 contract deals?

Question

I have just gone on O2 contract, and i got a free bolt on, of unlimited calls to O2 users, can I change it to Unlimited texts? Or is that not possible?

I really need to change it!

Thank you.

Answer 1

Maybe this link will help you http://www.o2.co.uk/mobilestariffs/tarif...

Answer 2

should be just phone them but it wont change till the next month.