Airport is nice and clean but the immigration off...

Airport is nice and clean but the immigration officers (police) are just horrific.
Am a non-EU national traveling to London with a valid UK residence card . I gave my passport and visa to the border control and the police just take them and dissapear for 20 minutes without any reason and not notifying me of what he is doing letting me waiting there like an idiot... Afterwards he comes without saying any word at all and hands the documents back to me. There is no law going on there. Albania is left in hands of some dumbs who dont even know that they need to explain by immigration act why we have stopped you....
Its just horrific service and racism, not worthy visiting Albania again....