Unsatisfactory service

I recently app**** for a telephone contract Samsung galaxy A50 and I haven't received any response from Telkom with regards to my online order. I am not satisfied with the service as it has been over a month since I have made the order. Their excuse has just been that They're using an external courier company and thats why it takes long but I am inconvenienced by this. I sent an email for my order to be cancelled but no one responded to have my order cancelled because how will I still neeed the phone after a month of waiting for an order?