Suo Moto Suspension of GST registration - Goods and Services Tax - GST

In our case the Client's GSTN is suspended (not cancelled) u/s 29 by issuing Reg 17 (Suo Moto suspended). SCN was issued after suspension of registration. We have replied to the SCN submitting that all the GST returns have been filed regularly and no provision of GST laws has been contravened by us; however the GST officer is not responding. Neither the registration is reinstated nor the same is cancelled. What is the legal remedy available now? Revocation application can be filed only after cancellation.