Penalty Assessment for dissolved Company?

If anyone can help with my query I would be grateful for any guidance or contact info. I am being sent Penalty Assessment notices for a Company which was dissolved in 2016. It was my company and formally would up by my accountant at the time both at the Tax Office and Companies House. I have set up a new company recently with the same name but the difference being the dissolved company was *** Ltd and the new company is *** Limited. I believe this could be the cause of the confusion however... my new accountact cannot speak to HMRC without a specific reference for the dissolved company which I cannot for the life of me find anywhere. I have spoken to HMRC about the matter and after a lengthy discussion they could not find the old company on the system (probably because it is dissolved) - they can find the new one but this is not the company the Penalty notices are being served on. Does anyone know who I can speak to (as online automated calls don't resolve the issue - just ends with the line being disconnected). Any advice or help would be welcome.

Hi Atkins,

HMRC do not serve "Late filing penalty notices" to a Company that is dissolved.
You may wish to check that your old company is detailed as "dissolved" at Companies House.
If it is not dissolved at Companies House, we will still hold our record as "live".
I suggest you write to us at:

Coprporation Tax Services,  
H M Revenue & Customs,
BX9 1AX,
United Kingdon.      
                                           
Please provide the Company Registration Number (CRN) for each of your companys, with details of when the old company stopped trading. 

Thank you.

Thanks for the response and the address. I have double checked and the old company is dissolved and has been since 2016. There is obviously an error in the way the new company has been listed at HMRC - 'ltd' instead of 'Limited' perhaps and this is where the error has occurred. Up until the date the new Company was registered I had never received any penalties or penalty demands (6 years) regarding the old company. Your response helps greatly now though as I can send a letter explaining all the details. Thanks again, appreciate your help.