Ported Number

I recently moved to Smarty. I enabled an esim on my phone and ported a number from my previous network. The porting process was completed and the ported number is shown in the Smarty app. My issue is that when I send a text the recipient is shown as it coming from the original Smarty number. 

Phone calls appear to come from the ported number so the issue only appears to affect text messages. Has anyone else been affected by this and is there a way to rectify it?