Rent 26Q For company

Hello experts,

XYZ Ltd. company and pay 30k Rent per month.

They shifted in April 2023. And have not deducted tds of the month April May June July. ( as the total was 1.2k i.e below the limit ) But They started deducting from August. 

My question here is are they required to file their 26Q return for Apr-June quarter?

And is the earlier non deduction correct? as the rent is already paid in full to landlord. what to do of its incorrect ?

Please Kindly tell as tomorrow is the last dare of return filing For Quarter April-jun.

Thanks & regards