Hufflepuff,
If it was an admin bod that has done this in error then a formal complaint may correct the situation, doing nothing certainly won't.
Write a statement of events, in chronological order.
Enclose copies of communications
Up to latest termination.
Then also download the gateway complaint form here
https://www.insolvencydirect.bis.gov.uk ... laint.aspx
You can send it electronically, personally I would complete and then select the print to post option at the top (you can always print to a PDF file installing a programme called CUTEpdf on a PC it is very handy)
Then I would draft my complaint to cleardebt using their details found here, simply a copy of what you wrote to the gateway should be enough.
I would send the gateway and the cleardebt complaint recorded delivery.
I would also email the contacts in their complaints link
http://creditfixme.co.uk/complaints/
With a copy of your letter & what you have sent the gateway (printed to PDF earlier or scanned in) send electronic copy stating you have sent the following by recorded to delivery and thought you would let them have an electric copy too to:
complaints@creditfixme.co.uk
complaint.info@financial-ombudsman.org.uk
Name of insolvency practioner @ creditfix me.co.uk
And for good measure copy in the CEO Pearse Flynn
https://uk.linkedin.com/pub/pearse-flynn/19/7ab/668 maybe
Pearse.flynn@creditfixme.co.uk
You have then done everything in written communication as required.
To just go and setup another IVA on my non professional layperson view would not be a good idea until you have exhausted the above as you're committing to another agreement you would not be able to exit if the above found they had acted incorrectly.