GST refund under inverted duty structure

Respected Sir,

          We make 100% of our sales to merchant exporters @ 0.10%. We had purchased 11000000 in July-2022 and sold 6000000 in the same month to merchant exporter @ 0.10%. Now we want to claim refund under inverted duty structure. i think we can claim refund only for the amount sold. Now my question is the refund of the remaining credit will be claim when we sell @ 0.10% or it will remain in credit ledger.  Because in statement-1, in net ITC column shown the credit of the same time period which we select, not earlier credit shown in this column. If we can claim refund, please let me know how the refund can be claimed.

Thanking you