Flora Sensations — not replying on my refund

Hi,
I had ordered for my mother a cake and flowers for her birthday on 07 June 2024 which they cancelled on the same day in the evening.

Order #10850 | Cancelled
And received an email on my personal mail id.

Dear Customer,

We are really sorry for the delayed response and inconvenience caused to you.

We are really sorry to tell you that currently we are unable to deliver your product at this time as our sellers are located too far away. We have to cancel your order, and you'll receive your refund within 10 to 15 working days..

We really apologize again for the inconvenience caused to you.

Kind regards,
Flora Sensations

Today is 18th day which my refund they have not given, sharing the screenshot of the order which was cancelled on there website page.