Just in case any of your legal heirs is in abroad, he / she can authorize other legal heir to gather allocation / intimation / allotment / transfer letter on their behalf. The authority letter should be attested by involved Pakistani Embassy / Consulates or Solicitor/ Notarized. Being familiar with https://trevoriprng.thechapblog.com/28963248/about-p-ethics-in-dha-karachi-pakistan