I expect you can ask for it to be lowered. But don't go too low. One of the negatives listed on my credit scoring is that my cc limit is low (£1000 -- didn't want more as only buy petrol and pay it off every month).
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014
I have just had a Capital One approved with a 2k limit which I am quite happy with to build up the old credit rating.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk
I have two CCs ..one with a nil balance and a limit of £8500 and another with zero interest and a nil balance of £5500 ... absolutely madness ... I certainly learnt my lesson before our iva.
Like Kallis if you have it too low it can have negative effect on your credit score
Sharing from experiences of dealing with debt
There is a solution for everyone .... Just need to stay positive !