i had the same problem with british gas and wescot.
phoned british gas who said that they would amend the bill so that their was nothing outstanding. i've found that the customer service team dont like doing this but if u request a manager on the phone they will do this for you.
i also got in touch with the dca who put the account on hold while they investegated what i had discussed with british gas. havent heard anything from them since february so hopefully all sorted.
will chase it up in a little while to make sure its all clear and check that there is nothing on my credit file from them.
i suggest that this is what u also do. let me know how u get on also
