I bought my old number with me but its gone to the number smarty gave me after I've been with the for several months
@AlanGer_2171193 You will need to change the number in the phone settings if it has not changed automatically.
Depends upon whether you have iPhone or android as to how you do it.
Have you checked the number showing online, in your SMARTY account, @AlanGer_2171193?
If that's incorrect, something might've gone wrong and I'd advise contacting SMARTY customer service quickly.
https://smarty.co.uk/contact - then scroll down to the "start a conversation" section.