Dear Querist
Kindly also refer to Circular 210 of 2024, more specifically para 3.7 specifically addresses your issue. I am reproducing the same for reference.
In view of the above, it is clarified that in cases where the foreign affiliate is providing certain services to the related domestic entity, and where full input tax credit is available to the said related domestic entity, the value of such supply of services declared in the invoice by the said related domestic entity may be deemed as open market value in terms of second proviso to rule 28(1) of CGST Rules. Further, in cases where full input tax credit is available to the recipient, if the invoice is not issued by the related domestic entity with respect to any service provided by the foreign affiliate to it, the value of such services may be deemed to be declared as Nil, and may be deemed as open market value in terms of second proviso to rule 28(1) of CGST Rules.
In your specific issue since no corporate guarantee fees has been paid AND if the recipient is eligible for full ITC then nothing need be done.