Nedbank mfc ,they are financing for me for my car

Nedbank mfc ,they are financing for me for my car.right no problem but they service providers were keep on phoning me for thing like car service , engine cover other staff. I thinking that taking those cover were good because they told me after 2 years it will expire or end those covers ,not knowing that even though they expire I will still be paying for services I dnt use until I finish paying my car .that information was not disclosed to me, and that why now I feel like they ****ed me.