To keypasswords,

I am not sure that your blood group is O- or O+. If its O-, then only you can help us. If its O+, then it won't work.

The medical facilities in Doha are little short but upto satisfactory standards. You can donate blood at Hamad Hospital Blood Donation Unit.

About rewards, I think that the only way I can repay your kindness is by giving blood to you when ever you need. Other than that, I don't have anything which can satisfy you. But if I pray for you to God, I am sure he will give you a great reward for your help.