Hi Samantha and welcome to the forum
I think the advice you have received is good, however your Supervisor ought to be the one petitioning unless the IVA proposal specifically stops him from doing this (unlikely). £134 is not sufficient to maintain an ongoing IVA.
The fact that you have other credit which was not declared, will probably mean that you will receive a Bankruptcy Restrictions Undertaking or Order. This just suspends your discharge from bankruptcy for a longer period than the usual one year. Why did you leave these debts out, and how were you paying them off at the same time you were making IVA contributions?
Your IP is incorrect in telling you that the bankruptcy will not be advertised, and I do not feel that an ongoing DMP is a sensible option for you given the amount of disposable income you have compared to the level of outstanding creditors. You will be paying for ever, even if you got creditors to agree to receiving token amounts.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk