@buttawaris, your comment really max me relax a bit until go to commercial bank evening and do it,
Why I want to cancel is, I am afraid about any hidden charge or any hidden interest they might add, because now only I see there are many bad reviews about commercial bank credit card in qatarliving posts by other users,

so bit nervous, and their annual renewal payment is not affordable for me if I not use it, first year free, and second year they will charge 650 qar