Hi Christian,
Yes, I alerted you just prior to my entering the archives to let you know I was about to get the look up, as I noticed you were on-line and you responded. I was able to find the marriage straightaway as I had the name of the correct Church (thanks to Boo) and the date of the marriage. I did not know that you were expecting an additional prompt to look at your own post, at that point.
I did hang around for a good while in the hope that someone would relinquish the microfilm so I could find the additional information which you are interested in - the marriage of Jane's Mother - however, this person kept the microfilm all morning.
After, I had posted the marriage of Alexander and Jane, I waited for an acknowledgement as I could see you were still on-line. However, after a while you went off-line. I was very disappointed at that point and decided that as you had gone I might as well too. If I had felt the first post had been appreciated I would have stayed at the archives longer to wait for the other microfilm to look up the other marriage.
By the way, on a post I made on 17 February, I did state that I now felt that I would be able to get to the archives for you within the next two weeks. Originally, I had felt I could reasonably commit to doing this look up for you within two months. I never try to be specific about a date, as in my job I often work long, unsocial hours, and I am regularly on-call, which means that I often have to do things on spec. I was not going there anyway. I was planning to do this for you, as I wanted to save you the expense and trouble of travelling up from London. It appears that you must not have seen this post either which I posted on the 17th.
Twenty four hours later, after my letting you know I was about to go into the Archives, I had still not received an acknowledgement.
All I can suggest is that in future, if someone lets you know that they are minutes away from doing your look up, I would check your own post and not wait for any further prompts.

Thank you anyway, for your apology.