Hi Colin,
First point is not to do anything, if the customer is at all serious, she will let you know, trust me on this!
Second point, you say that you have a disclaimer on some sort of paperwork, perhaps the order form?
Do you have all the legal paperwork in place?
Risk Assessments, Method Statements, Coshh etc. The paperwork should be specific for the task being carried out, in this case oven cleaning, if you do not have this, get it sorted B****Y quick!
Note the date and time your customer informed you of this, plus the fact that she mentioned compensation whilst you were on the job, so to speak.
If she does contact you again, then inform her of your insurance details, then as BDCS says, say nowt.
As you already mentioned, she is probably trying it on, but you never can be sure, especially if you are untrained in cleaning ovens, or you do not fully grasp the risks associated with the scope of works that you carry out.
Being able to clean an oven is totally different to being trained in how to clean an oven!
If she does go ahead with a claim, the insurance will probably settle out of court with the least fuss and cost that it can, however your own premiums will rise next time, plus you may find it more difficult to get insurance in the future.
Get your paperwork, policies and procedures right for all tasks that you undertake, get certified training in each of the tasks that you undertake, and ensure that you follow the correct procedures on site.
I think that we will all see much more of this throughout 2009 -10, as most people are well aware of the ease of submitting a claim these days.
Best of British,
Regards,
Rob