Changing accountant
First off, I am a practicing accountant
Anonimus,
if you are having this much trouble with your previous accountant, I would suggest, if you have not tried already to
Contact him and let him know you are very unhappy with the bills you are receiving and the support he is giving to your new accountant?
You may have already tried this or possibly he does not take your calls ( I know this is a favourite response from a lot of accountants)
See what his reply is, you may be able agree on something
If not, you will need your new accountant to understand the situation, as I usually shy away from clients who are having trouble with their previous accountant especially with relation to bills
Your new accountant could write to the old one on a professioanl level
Next , if you are in danger of incurring fines and penalties from Revenue contact them and put your case to them
Revenue can be very understanding (I feel) if they are contacted in advance of problems
Ignoring Revenue is never a good idea, they may go away for a period but they will always come back
Finally, you could contact the institute that the accountant belongs to if you still receive no assisstance