Pink card validity

Dear sir
I sent the registered resingn letter on1april21 and i received the pink card on 12may21,  now any problem for transfer about the validity of pink card related issues.. please help

No problem.

there is any validity.?? because transfer is only possible for the next month.some people told me its validity only 3months

Read this :
https://lmra.bh/portal/en/page/show/194

Pink card is not the issue.  Transfer date and notice is.

oh thankyou very much. 
there is one more problem in the pink card. there is only one seal it shows unclaimed. i check with document clearing agent of new company. he told need one more seal from post office. i also check with post office they told me they no need the seal, so iam confused for my transfer application rejection.

sir please answer..
there is one more problem in the pink card. there is only one seal it shows unclaimed. i check with document clearing agent of new company. he told need one more seal from post office. i also check with post office they told me they no need the seal, so iam confused for my transfer application if reject or not

Submit the card with the document clearance agent.  And wait for the outcome.