>>Just to give an update on this:
>>
>>I think you are all correct with your suggestions. It seems that the escape key does not actually interrupt the currently running statement, therefore, there is no-need to re-run it using retry.
>>
>>So, I have removed my retries, which fixes the nesting errors.. problems solved!
>>
>>Thanks
>>Will
>>
>You're welcome.

"You're welcome"?