Claim of IGST paid at CUSTOM while import of goods.

Dear Sir/Madam

While import of goods we paid IGST in Custom with bill of entry for the period of Apr- Dec-21, but same are not reflects fully in our 2A and 2B even after using BOE search option till date. We possess all valid documents in our records and Got confirmation from custom that they have transmitted the data to GST department.

My query is:
1. Could I claim non reflected IGST, which is paid at custom with Bill of entry.

2. After Claiming could officer block my credit ledger, for claim of excess credit than 2B.



Thanks and regards