No do not finalize, if you do that you release payment to the vendor and SR support cannot and will not be able to help you. Please refer to the SR wiki on how the resolution center works, here are some links: https://dkn255hz262ypmii.onion.to/wiki/index.php?title=Frequently_Asked_Questions#My_order_hasn.27t_arrived_or_it.27s_not_what_I_expected https://dkn255hz262ypmii.onion.to/wiki/index.php?title=Frequently_Asked_Questions#I.27m_having_trouble_agreeing_on_a_resolution https://dkn255hz262ypmii.onion.to/wiki/index.php?title=Frequently_Asked_Questions#How_are_resolutions_decided