zaidkhan,
They might just not have done any mistake in counting your points. could it be that you mistakenly calculated your years of experience in the forms, coz people often make mistakes in those forms; like they say Mango but Write Man Go. they are different things. yea, you can obviously send a recosideration letter if you definitely think that they made a mistake. point the mistake out in your letter. better show in the forum before sending the reconsideration letter. I have seen peopl;e got MR's after thse type of letters sent to CHC. their refusals were revoked