.......am not aware of the rule that your new employer has to tell your old employer that he is paying you.
When I left the service I spent 4 weeks on resettlement training in lieu of going on a course. The trainer had to sign a piece of paper to say that he would not pay me for the 4 weeks training. I then spent my 28 days terminal leave with the same company for very good wages.
'We knew how to whinge but we kept it in the NAAFI bar.'