Missing complementary package

I bought a bed that was on "special ". It had a complementary package but the package was not delivered. I asked the sales lady before paying and she confirmed warehouse will deliver the package with the bed. I got the bed without the complementary package.

I went to the store after delivery to inform the salesperson that I didn't get the package. She took my details and promised to get back to me, 10 days later I am still waiting for her call. I have been calling the store for the past 5 days I am always told she is not in. The person that I spoke to said she is always sick and can't confirm when she will be at work. I called again and informed them about my problem, I was referred to warehouse. It's a nightmare getting the right person to assist at the warehouse.

Please get back to me, at this stage I think you must come collect your bed as it's still unused and it's still in its package and give me my full refund . I feel like I need to beg for service.