chase up
US /tʃeɪs ʌp/
UK /tʃeɪs ʌp/

1.
investigar, hacer seguimiento
to find out more information about something or to make sure that something has been done
:
•
I need to chase up that invoice; it's overdue.
Necesito investigar esa factura; está vencida.
•
Can you chase up the delivery status of my order?
¿Puedes investigar el estado de entrega de mi pedido?