angry customer

I am a dissatisfied customer of Lewis stores. I purchased a Sinotec 47' TV with the Athlone branch in March however the TV after a month started giving problems by not switching on at all. I reported this to the branch on the 13th of April 2019 and I spoke to a teller who advised there is no store manager. I called the store again on MOnday to log the complaint was advised there is no store manager, driver or clerk to assist with my query and I was advised there is nothing they can do even though the goods are only a month old, was advised there's nothing they can do I must just seat with that TV till the manager is back. I logged a complaint with the Lewis customer care on the very same Monday the 15/4/2019 and on Tuesday a driver came to pick up the TV. I have been waiting for feedback ever since and each time I follow up am told there is no manager to assist but there goods are still only a month old now am stuck with debt for goods that I dont even have in my possession. I have been calling for feedback but to no avail am just told someone will get back to me.