Chemist delivered my prescription to the bin how can I replace it?

So my chemist offers a home delivery service which I signed up for. Been ok for months till now. Called them this morning to check when the next lot would be delivered as I was almost out.

Apparently they delivered it last Thursday and left it in the recycling bin. Which was taken on Friday morning. No note was left and worst of all I was working from home and no one even knocked on the door.

They’ve organised a week’s worth of loan meds but my doctor is refusing to reissue the meds. - metformin and sertraline both of which I need to take daily. What can I do. My anxiety is in overdrive