Hi priti and welcome to the forum
In my experience MBNA vote more often than not, and they they can be a bit prickly. Their decision will really be dependent upon the age of your debt with them (less likely to accept if it is more recent), and if you have been paying up until quite recently.
I note that you are paying a rather high dividend of 62p in the £. This is commendable, but may have its disadvantages too, so far as MBNA are concerned, as they may see that if the IP fees were to be removed, and you simply carried on making pro-rata payments, that they would eventually get paid in full (albeit this would take longer than five years and they probably would not freeze interest.
Your IP presumably also has experience of dealing with MBNA, and I doubt he/she would be putting a proposal forward for you if they felt there was a chance of rejection. Do be aware, however, that MBNA are presently quite critical of expenditure items such as Sky TV, health insurance, pensions, household maintenance insurance, mobile telephones, housekeeping and clothing, so do be sure all of your items can be justified.
Good luch with the creditors meeting, and let us know how you get on.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
View my IVA blog at:
http://melaniegiles.blogs.iva.co.uk