Paying for years for an item I do not own!!!

I purchased a television set in 2010 together with a clock radio (which I reluctantly took due to the persistence of the sales person).<br> <br> I have to date (we are now in 2015) not received my clock radio. I find it really disturbing that after my numerous visits to the store and telephone calls that nothing has been done to rectify this.<br> <br> Yet without fail I receive a letter monthly and an sms stating I am in arrears. I am about to finally settle this account and I would like my clock radio which I have been paying for the past 4 odd years.<br> <br> Every time I call, I am advised that there isn't stock or I should call when the manager is there. I work far from the store and why should I take a day off if its not guaranteed I will get it.<br> <br> Paying for an item for the past 4 odd years but have not received it. Please can something be done to rectify this matter urgently. As I would like to pay this account tomorrow and would like either my clock radio or a reduced settlement!<br>