Notice of inquiry from GST dept for utililising more than95% ITC for discharging gst liability .

Dear Sir,

We have received a notice of inquiry from GST dept for utilising more than 95% of input credit for discharging gst liability during FY 2017-18. We have utilised 99% itc & 1% cash for discharging liability. Is there any rules or law that we can not utilise more than 95% of ITC for discharging liability. Please clarify on this point,Sir

With Regard

Thanking You