I have training for a new job starting on Monday. I'm relocating to the place of work where the training takes place, then the rest of the family are moving a few weeks after. I still have things to sort out here and it would be better if I could move the training start date back a week. Can I do that or will the company say they don't want me anymore and find someone else. Also, because I'll be on probation, will it go against me. Thanks