Penalized for good payments !?

i bought a boys comforter set 9-11-2013 from Home choice, i dont use it much as i rotate the bedding often, it has now pulled loose on the one side, i called the call centre this morning spoke to Adiva who told me that they cannot do anything for me as i paid cash and there is only a 30 day guarantee/warantee on the merchandise. This is rediculous that i paid a arm and a leg for this set, paid cash... which i always thought was the best option as home choice receives all their money once off, however now i have to suffer the consequences of bad quality just because i am a good payer ???? i did infact buy a comforter set from pep at a fraction of the price, round about the same time and it is still in perfect condition ? Wow homechoice you have really let me down !!!