Poor quality shower head

I bought a Triumph \ MC Shower Rose 1func8\" \" at DIY in Bloemfontein on the 7th of August 2015, in January 2016 it started leaking on the top of the rim, and it burst open so in other words it can not take the normal house pressure, it did not last 5 months, so it is not of good quality this Triumph shower head "