Today they urged Londoners to come forward. On Sunday, Delete Blood Cancer UK and the Jaskomal Foundation will hold an event in Southall to find donors. Mr Bains, 31, a shop owner from Tipton, said: “Because Gaurav’s immune system is weak, we can’t take him out because he’ll be very likely to get ill. Without a transplant he’ll get leukaemia. Any parent would be scared. You feel helpless.”