When you are completing the ACKNOWLEDGEMENT OF SERVICE Court Form N9 please be aware that there are no 'Expert Witnesses' that are available to help you. The Form MUST be completed within 14 days of the date of Service or you risk getting a Judgment against you automatically.
See https://legalbeagles.info/library/guides_and_letters/court/how-to-acknowledge-a-claim/ We at CEBTA are grateful for Legal Beagles explanations.
Please also be aware that if the Claim is against two or more Defendants - maybe the second Defendant is a Limited Company - then TWO separate Acknowledgment of Service Forms are needed. The Limited Company Form should be signed by the Director who is being sued - print your name, sign your usual signature, but at the Foot of the Form you need to complete the 'Position or Office Held' Section and state 'Director'. Do not forget Date it. The date must be within 14 days of the date stamped on the Claim Form. We recommend that you tick "I intend to defend all of this Claim".
It is best to use the same address for both Defendants. The only part of the Form that differentiate the different Defendants is the 'Defendants Full Name' section on the top left of the Form, plus the box to the right where it states 'Defendant'. For one Form, the Defendant is usually a person, for the other it is usually a Limited Company name.
You do not fill in the name of your local Court - the Claim has usually arrived from CCMCC (County Court Money Claims Centre) or from CCBC (County Court Business Centre). The only ways you should return the Forms are: e-mail (if the Form gives an e-mail address) or by normal First Class Post having obtained a Certificate of Posting from the Post Office clerk. Keep the Certificate carefully and a copy of the completed N9 Form. 'Signed for' Recorded mail will be returned to you, because the Court either has P O Box number - literally a mail box that is opened once daily and all the mail removed so no-one can sign; or, in the case of the CCBC there doesn't seem to be a policy of signing for mail.
If the Court write to say they have not received your N9, by following the recommendations above, you can at least prove that you completed it and you posted it.