Purchase a cordless Mouse. not working

I have purchased this mouse on 04 September 2017@ 3:40pm. the techinical manager assisted me with that this was about the best product you could buy. i got home and the mouse did not work. On Monday i tried calling the number I got from the internet ( ********** 600) and for days I could not get through. on Wednesday the Pavilion Manager (Nichole) contacted me after i email the customer care. she told me that the store manager Roshal will contact me which did not happen. i have sent ± 8 emails with no response. On Monday 11 September i contacted Nichole and she promised that Roshal will get back to me the same. this did not happen. Eventually the next day I got hold of Roshal and she promised that a techinician will come home and replace the mouse. After half an hour she called me and said that this cannot happen, because it is not company policy. Being a manager it is shocking to know that she does not know the company policy. At the end of the day she has no qualities of a manager and customer services.